Renamed folder Scripts to scripts

scripts/Windefender.ps1

@@ -0,0 +1,49 @@
+<#
+.SYNOPSIS
+	Windows defender in powershell
+.DESCRIPTION
+	This script can enable disable and show windows defender real time monitoring!
+.EXAMPLE
+	PS> ./Windefender.ps1
+.LINK
+	https://github.com/pakoti/Awesome_Sysadmin
+.NOTES
+	Author: Dark Master | License: CC0-1,0
+#>
+
+
+
+$defender = Get-MpPreference
+
+$userInput = Read-Host "Enter an option: 
+[1] Disable real time monitoring 
+[2] Enable real time monitoring 
+[3] Check status
+"
+
+switch($userInput) {
+1 {
+$defender.DisableRealtimeMonitoring = $true
+$defender | Set-MpPreference
+Write-Host "Real-time monitoring of Windows Defender has been disabled."
+break
+}
+2 {
+$defender.DisableRealtimeMonitoring = $false
+$defender | Set-MpPreference
+Write-Host "Real-time monitoring of Windows Defender has been enabled."
+break
+}
+3 {
+if($defender.DisableRealtimeMonitoring) {
+Write-Host "Real-time monitoring of Windows Defender is currently disabled."
+} else {
+Write-Host "Real-time monitoring of Windows Defender is currently enabled."
+}
+break
+}
+default {
+Write-Host "Invalid option selected."
+break
+}
+}

scripts/add-firewall-rules.ps1

@@ -0,0 +1,54 @@
+<#
+.SYNOPSIS
+	Adds firewall rules for executables (needs admin rights).
+.DESCRIPTION
+	This PowerShell script adds firewall rules for the given executable. Administrator rights are required.
+.PARAMETER PathToExecutables
+	Specifies the path to the executables.
+.PARAMETER Direction
+	Specifies the direction for the firewall rule. Can be 'Inbound' or 'Outbound'. Default is 'Inbound'.
+.PARAMETER Profile 
+	Specifies the firewall profile. Can be 'Domain', 'Private', or 'Public'. Multiple values can be specified as an array.
+.EXAMPLE
+	PS> ./add-firewall-rules.ps1 -PathToExecutables C:\MyApp\bin -Direction Outbound -Profile Private
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+#Requires -RunAsAdministrator
+
+param(
+	[string]$PathToExecutables = "",
+	[string]$Direction = "Inbound",
+	[array]$FirewallProfile  = @("Domain", "Private")
+)
+
+try {
+	if (-not $PathToExecutables) {
+		$PathToExecutables = Read-Host "Enter path to executables"
+	}
+
+	$AbsPath = Convert-Path -Path $PathToExecutables
+	$Executables = Get-ChildItem -Path $AbsPath -Filter "*.exe"
+
+	if (-not $Executables) {
+		Write-Warning "No executables found. No Firewall rules have been created."
+		Read-Host "Press Enter to continue..."
+		return
+	}
+
+	foreach ($exe in $Executables) {
+		$exeName = $exe.Name
+		$exeFullPath = $exe.FullName
+
+		Write-Output "Adding firewall rule for $exeName"
+		New-NetFirewallRule -DisplayName $exeName -Direction $Direction -Program $exeFullPath -Profile $FirewallProfile  -Action Allow
+	}
+
+	Write-Host -ForegroundColor Green "Done"
+} catch {
+	Write-Error "Error in line $($_.InvocationInfo.ScriptLineNumber): $($_.Exception.Message)"
+}
+

scripts/add-memo.ps1

@@ -0,0 +1,36 @@
+<#
+.SYNOPSIS
+	Adds a memo text 
+.DESCRIPTION
+	This PowerShell script saves the given memo text to Memos.csv in your home folder.
+.PARAMETER text
+	Specifies the text to memorize
+.EXAMPLE
+	PS> ./add-memo.ps1 "Buy apples"
+	✔️ saved to 📄/home/markus/Memos.csv
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$text = "")
+
+try {
+	if ($text -eq "" ) { $text = Read-Host "Enter the text to memorize" }
+
+	$Path = "~/Memos.csv"
+	$Time = Get-Date -format FileDateTimeUniversal
+	$Line = "$Time,$text"
+
+	if (-not(Test-Path "$Path" -pathType leaf)) {
+		Write-Output "TIME,TEXT" > "$Path"
+	}
+	Write-Output $Line >> "$Path"
+
+	"✔️ saved to 📄$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/alert.ps1

@@ -0,0 +1,29 @@
+<#
+.SYNOPSIS
+	Handles and escalates an alert 
+.DESCRIPTION
+	This PowerShell script handles and escalates the given alert message.
+.PARAMETER message
+	Specifies the alert message
+.EXAMPLE
+	PS> ./alert.ps1 "Harddisk failure"
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Message = "")
+
+try {
+	if ($Message -eq "" ) { $URL = read-host "Enter alert message" }
+
+	echo "ALERT: $Message"
+
+	curl --header "Access-Token: o.PZl5XCp6SBl4F5PpaNXGDfFpUJZKAlEb" --header "Content-Type: application/json" --data-binary '{"type": "note", "title": "ALERT", "body": "$Message"}' --request POST https://api.pushbullet.com/v2/pushes
+
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/build-repo.ps1

@@ -0,0 +1,147 @@
+<#
+.SYNOPSIS
+	Builds a repository 
+.DESCRIPTION
+	This PowerShell script builds a Git repository by supporting build systems such as: autogen, cmake, configure, Gradle, Imakefile, Makefile, and Meson.
+.PARAMETER path
+	Specifies the path to the Git repository (current working dir by default)
+.EXAMPLE
+	PS> ./build-repo.ps1 C:\Repos\ninja
+	⏳ Building 📂ninja using CMakeLists.txt into 📂ninja/_My_Build...
+	...
+	✔️ Built 📂ninja in 47 sec
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$path = "$PWD")
+
+function BuildInDir([string]$path) {
+	$dirName = (Get-Item "$path").Name
+	if (Test-Path "$path/CMakeLists.txt" -pathType leaf) {
+		"⏳ (1/4) Building 📂$dirName by using CMake into 📂$dirName/_My_Build..."
+		if (-not(Test-Path "$path/_My_Build/" -pathType container)) { 
+			& mkdir "$path/_My_Build/"
+		}
+		Set-Location "$path/_My_Build/"
+
+		"⏳ (2/4) Executing 'cmake' to generate the Makefile..."
+		& cmake ..
+		if ($lastExitCode -ne "0") { throw "Executing 'cmake ..' has failed" }
+
+		"⏳ (3/4) Executing 'make -j4' to compile and link..."
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+		"⏳ (4/4) Executing 'make test' to perform tests (optional)..."
+		& make test
+		if ($lastExitCode -ne "0") { throw "Executing 'make test' has failed" }
+
+	} elseif (Test-Path "$path/configure" -pathType leaf) { 
+		"⏳ Building 📂$dirName by using 'configure'..."
+		Set-Location "$path/"
+
+		& ./configure
+		#if ($lastExitCode -ne "0") { throw "Script 'configure' exited with error code $lastExitCode" }
+
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+		& make test
+		if ($lastExitCode -ne "0") { throw "Executing 'make test' has failed" }
+
+	} elseif (Test-Path "$path/autogen.sh" -pathType leaf) { 
+		"⏳ Building 📂$dirName by using 'autogen.sh'..."
+		Set-Location "$path/"
+
+		& ./autogen.sh
+		if ($lastExitCode -ne "0") { throw "Script 'autogen.sh' exited with error code $lastExitCode" }
+
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+	} elseif (Test-Path "$path/build.gradle" -pathType leaf) {
+		"⏳ Building 📂$dirName by using Gradle..."
+		Set-Location "$path"
+
+		& gradle build
+		if ($lastExitCode -ne "0") { throw "'gradle build' has failed" }
+
+		& gradle test
+		if ($lastExitCode -ne "0") { throw "'gradle test' has failed" }
+
+	} elseif (Test-Path "$path/meson.build" -pathType leaf) {
+		"⏳ Building 📂$dirName by using Meson..."
+		Set-Location "$path"
+		& meson . build --prefix=/usr/local
+		if ($lastExitCode -ne "0") { throw "'meson . build' has failed" }
+
+	} elseif (Test-Path "$path/Imakefile" -pathType leaf) {
+		"⏳ Building 📂$dirName by using Imakefile..."
+		Set-Location "$path/"
+
+		& xmkmf 
+		if ($lastExitCode -ne "0") { throw "Executing 'xmkmf' has failed" }
+
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+	} elseif (Test-Path "$path/Makefile" -pathType leaf) {
+		"⏳ Building 📂$dirName by using Makefile..."
+		Set-Location "$path"
+
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+	} elseif (Test-Path "$path/makefile" -pathType leaf) {
+		"⏳ Building 📂$dirName by using makefile..."
+		Set-Location "$path"
+
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+	} elseif (Test-Path "$path/compile.sh" -pathType leaf) { 
+		"⏳ Building 📂$dirName by using 'compile.sh'..."
+		Set-Location "$path/"
+
+		& ./compile.sh
+		if ($lastExitCode -ne "0") { throw "Script 'compile.sh' exited with error code $lastExitCode" }
+
+		& make -j4
+		if ($lastExitCode -ne "0") { throw "Executing 'make -j4' has failed" }
+
+	} elseif (Test-Path "$path/attower/src/build/DevBuild/build.bat" -pathType leaf) {
+		"⏳ Building 📂$dirName by using build.bat ..."
+		Set-Location "$path/attower/src/build/DevBuild/"
+
+		& ./build.bat build-all-release
+		if ($lastExitCode -ne "0") { throw "Script 'build.bat' exited with error code $lastExitCode" }
+
+	} elseif (Test-Path "$path/$dirName" -pathType container) {
+		"⏳ No make rule found, trying subfolder 📂$($dirName)..."
+		BuildInDir "$path/$dirName"
+	} else {
+		Write-Warning "Sorry, no make rule applies to: 📂$dirName"
+		exit 0 # success
+	}
+}
+
+try {
+	$stopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	if (-not(Test-Path "$path" -pathType container)) { throw "Can't access directory: $path" }
+
+	$previousPath = Get-Location
+	BuildInDir "$path"
+	Set-Location "$previousPath"
+
+	$repoDirName = (Get-Item "$path").Name
+	[int]$elapsed = $stopWatch.Elapsed.TotalSeconds
+	"✔️ Built 📂$repoDirName in $elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/build-repos.ps1

@@ -0,0 +1,40 @@
+<#
+.SYNOPSIS
+	Builds Git repositories
+.DESCRIPTION
+	This PowerShell script builds all Git repositories in a folder.
+.PARAMETER ParentDir
+	Specifies the path to the parent folder
+.EXAMPLE
+	PS> ./build-repos.ps1 C:\MyRepos
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$ParentDir = "$PWD")
+
+try {
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	$ParentDirName = (Get-Item "$ParentDir").Name
+	"⏳ Step 1 - Checking parent folder 📂$ParentDirName..."
+	if (-not(Test-Path "$ParentDir" -pathType container)) { throw "Can't access folder: $ParentDir" }
+	$Folders = (Get-ChildItem "$ParentDir" -attributes Directory)
+	$FolderCount = $Folders.Count
+	"Found $FolderCount subfolders."
+
+	[int]$Step = 1
+	foreach ($Folder in $Folders) {
+		& "$PSScriptRoot/build-repo.ps1" "$Folder"
+		$Step++
+	}
+
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ built $FolderCount Git repositories at 📂$ParentDirName in $Elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-autostart.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's autostart folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's autostart folder.
+.EXAMPLE
+	PS> ./cd-autostart.ps1
+	📂C:\Users\Markus\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "$HOME/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Startup"
+	if (-not(Test-Path "$Path" -pathType container)) {
+		throw "Autostart folder at 📂$Path doesn't exist (yet)"
+	}
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-crashdumps.ps1

@@ -0,0 +1,29 @@
+<#
+.SYNOPSIS
+	Change to the crash dumps folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the crash dumps directory (Windows only). Whenever a software crashes and crash dumps are enabled(!) a crash dump file is written. This file helps to identify the reason for the crash.
+.EXAMPLE
+	PS> ./cd-crashdumps
+	📂C:\Users\Markus\AppData\Local\CrashDumps
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) { throw "Sorry, Windows only" }
+
+	[string]$path = Resolve-Path -Path "~"
+	if (!(Test-Path "$path" -pathType container)) { throw "Home directory at $path doesn't exist (yet)" }
+
+	$path += "\AppData\Local\CrashDumps"
+	if (!(Test-Path "$path" -pathType container)) { throw "Crashdumps directory at $path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-desktop.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's desktop folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's desktop folder.
+.EXAMPLE
+	PS> ./cd-desktop
+	📂/home/Markus/Desktop
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "~/Desktop"
+	} else {
+		$Path = [Environment]::GetFolderPath('DesktopDirectory')
+	}
+	if (Test-Path "$Path" -pathType container) {
+		Set-Location "$Path"
+		"📂$Path"
+		exit 0 # success
+	}
+	throw "User's desktop folder at 📂$Path doesn't exist (yet)"
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-docs.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the documents folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the documents folder.
+.EXAMPLE
+	PS> ./cd-docs
+	📂C:\Users\Markus\Documents
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "$HOME/Documents"
+	} else {
+		$Path = [Environment]::GetFolderPath('MyDocuments')
+	}
+	if (-not(Test-Path "$Path" -pathType container)) {
+		throw "Documents folder at 📂$Path doesn't exist (yet)"
+	}
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-downloads.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's downloads folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's downloads folder.
+.EXAMPLE
+	PS> ./cd-downloads
+	📂C:\Users\Markus\Downloads
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "~/Downloads"
+	} else {
+		$Path = (New-Object -ComObject Shell.Application).NameSpace('shell:Downloads').Self.Path
+	}
+	if (Test-Path "$Path" -pathType container) {
+		Set-Location "$Path"
+		"📂$Path"
+		exit 0 # success
+	}
+	throw "User's downloads folder at 📂$Path doesn't exist (yet)"
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-dropbox.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's Dropbox folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's Dropbox folder.
+.EXAMPLE
+	PS> ./cd-dropbox
+	📂C:\Users\Markus\Dropbox
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "$HOME/Dropbox"
+	if (-not(Test-Path "$Path" -pathType container)) {
+		throw "Dropbox folder at 📂$Path doesn't exist (yet)"
+	}
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-etc.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Changes to the /etc directory
+.DESCRIPTION
+	This PowerShell script changes the working directory to the /etc directory.
+.EXAMPLE
+	PS> ./cd-etc
+	📂C:\Windows\System32\drivers\etc
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinx) {
+		$Path = "/etc"
+	} else {
+		$Path = Resolve-Path "$env:WINDIR\System32\drivers\etc"
+	}
+	if (-not(Test-Path "$Path" -pathType container)) {
+		throw "/etc directory at 📂$Path doesn't exist (yet)"
+	}
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-fonts.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the fonts folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the fonts folder.
+.EXAMPLE
+	PS> ./cd-fonts
+	📂C:\Windows\Fonts
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = [Environment]::GetFolderPath('Fonts')
+	if (-not(Test-Path "$Path" -pathType container)) {
+		throw "Fonts folder at 📂$Path doesn't exist (yet)"
+	}
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-home.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's home folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's home directory.
+.EXAMPLE
+	PS> ./cd-home
+	📂C:\Users\Markus
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path -Path "~"
+	if (Test-Path "$Path" -pathType container) {
+		Set-Location "$Path"
+		"📂$Path"
+		exit 0 # success
+	}
+	throw "User's home folder at 📂$Path doesn't exist (yet)"
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-logs.ps1

@@ -0,0 +1,29 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the logs folder
+.DESCRIPTION
+	This PowerShell script changes the current working directory to the logs directory.
+.EXAMPLE
+	PS> ./cd-logs
+	📂/var/logs
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetLogsDir {
+	if ($IsLinux) { return "/var/logs" }
+	$WinDir = [System.Environment]::GetFolderPath('Windows')
+	return "$WinDir\Logs"
+}
+
+try {
+	$Path = GetLogsDir
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-music.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's music folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's music folder.
+.EXAMPLE
+	PS> ./cd-music
+	📂C:\Users\Markus\Music
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "~/Music"
+	} else {
+		$Path = [Environment]::GetFolderPath('MyMusic')
+	}
+	if (Test-Path "$Path" -pathType container) {
+		Set-Location "$Path"
+		"📂$Path"
+		exit 0 # success
+	}
+	throw "User's music folder at 📂$Path doesn't exist (yet)"
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-onedrive.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's OneDrive folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's OneDrive folder.
+.EXAMPLE
+	PS> ./cd-onedrive
+	📂C:\Users\Markus\OneDrive
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "$HOME/OneDrive"
+	if (-not(Test-Path "$Path" -pathType container)) {
+		throw "OneDrive folder at 📂$Path doesn't exist (yet)"
+	}
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-pics.ps1

@@ -0,0 +1,28 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's pictures folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's pictures folder.
+.EXAMPLE
+	PS> ./cd-pics
+	📂C:\Users\Markus\Pictures
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "$HOME/Pictures"
+	} else {
+		$Path = [Environment]::GetFolderPath('MyPictures')
+	}
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Pictures folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-public.ps1

@@ -0,0 +1,28 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the Public folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the Public folder.
+.EXAMPLE
+	PS> ./cd-public
+	📂C:\Users\Public
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "~/Public"
+	} else {
+		$Path = Resolve-Path "~/../Public"
+	}
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Public folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-recycle-bin.ps1

@@ -0,0 +1,34 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's recycle bin folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's recycle bin folder.
+.EXAMPLE
+	PS> ./cd-recycle-bin
+	📂C:\$Recycle.Bin\S-1-5-21-123404-23309-294260-1001
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetCurrentUserSID { [CmdletBinding()] param()
+	Add-Type -AssemblyName System.DirectoryServices.AccountManagement
+	return ([System.DirectoryServices.AccountManagement.UserPrincipal]::Current).SID.Value
+}
+
+
+try {
+	if ($IsLinux) {
+		$Path = "$HOME/.local/share/Trash/"
+	} else {
+		$Path = "C:\$Recycle.Bin\" + "$(GetCurrentUserSID)"
+	}
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Recycle bin folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-repos.ps1

@@ -0,0 +1,37 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's repos folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's Git repositories folder.
+.PARAMETER Subpath
+	Specifies an additional relative subpath (optional)
+.EXAMPLE
+	PS> ./cd-repos
+	📂C:\Users\Markus\source\Repos
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Subpath = "")
+
+try {
+	if (Test-Path "$HOME/Repos" -pathType Container) {		# try short name
+		$Path = "$HOME/Repos/$Subpath"
+	} elseif (Test-Path "$HOME/Repositories" -pathType Container) {	# try long name
+		$Path = "$HOME/Repositories/$Subpath"
+	} elseif (Test-Path "$HOME/source/repos" -pathType Container) { # try Visual Studio default
+		$Path = "$HOME/source/repos/$Subpath"
+	} else {
+		throw "The folder for Git repositories in your home directory doesn't exist (yet)."
+	}
+	if (-not(Test-Path "$Path" -pathType Container)) { throw "The path to 📂$Path doesn't exist (yet)." }
+	$Path = Resolve-Path "$Path"
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error: $($Error[0])"
+	exit 1
+}

scripts/cd-root.ps1

@@ -0,0 +1,23 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the root directory 
+.DESCRIPTION
+	This PowerShell script changes the current working directory to the root directory (C:\ on Windows).
+.EXAMPLE
+	PS> ./cd-root
+	📂C:\
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {	$Path = "/" } else { $Path = "C:\" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-screenshots.ps1

@@ -0,0 +1,36 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's screenshots folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's screenshots folder.
+.EXAMPLE
+	PS> ./cd-screenshots
+	📂C:\Users\Markus\Pictures\Screenshots
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetScreenshotsFolder {
+        if ($IsLinux) {
+                $Path = "$HOME/Pictures"
+		if (-not(Test-Path "$Path" -pathType container)) { throw "Pictures folder at $Path doesn't exist (yet)"	}
+		if (Test-Path "$Path/Screenshots" -pathType container) { $Path = "$Path/Screenshots" }
+        } else {
+                $Path = [Environment]::GetFolderPath('MyPictures')
+		if (-not(Test-Path "$Path" -pathType container)) { throw "Pictures folder at $Path doesn't exist (yet)" }
+		if (Test-Path "$Path\Screenshots" -pathType container) { $Path = "$Path\Screenshots" }
+        }
+	return $Path
+}
+
+try {
+	$Path = GetScreenshotsFolder
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-scripts.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the PowerShell scripts folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the PowerShell scripts folder.
+.EXAMPLE
+	PS> ./cd-scripts
+	📂C:\Users\Markus\source\repos\PowerShell\scripts
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "$PSScriptRoot"
+	if (-not(Test-Path "$Path" -pathType container)) { throw "PowerShell scripts folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-ssh.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's SSH folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's SSH folder.
+.EXAMPLE
+	PS> ./cd-ssh
+	📂C:\Users\Markus\.ssh
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "~/.ssh"
+	if (-not(Test-Path "$Path" -pathType container)) { throw "User's SSH folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-temp.ps1

@@ -0,0 +1,31 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the temporary folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the temporary folder.
+.EXAMPLE
+	PS> ./cd-temp
+	📂C:\Users\Markus\AppData\Local\Temp
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetTempDir {
+        if ("$env:TEMP" -ne "") { return "$env:TEMP" }
+        if ("$env:TMP" -ne "")  { return "$env:TMP" }
+        if ($IsLinux) { return "/tmp" }
+        return "C:\Temp"
+}
+
+try {
+	$Path = GetTempDir
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Temporary folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-templates.ps1

@@ -0,0 +1,28 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the templates folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the templates folder.
+.EXAMPLE
+	PS> ./cd-templates
+	📂/home/Markus/Templates
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "~/Templates"
+	} else {
+		$Path = [Environment]::GetFolderPath('Templates')
+	}
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Templates folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-trash.ps1

@@ -0,0 +1,34 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's trash folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's trash folder.
+.EXAMPLE
+	PS> ./cd-trash
+	📂C:\$Recycle.Bin\S-1-5-21-123404-23309-294260-1001
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetCurrentUserSID { [CmdletBinding()] param()
+	Add-Type -AssemblyName System.DirectoryServices.AccountManagement
+	return ([System.DirectoryServices.AccountManagement.UserPrincipal]::Current).SID.Value
+}
+
+
+try {
+	if ($IsLinux) {
+		$Path = "$HOME/.local/share/Trash/"
+	} else {
+		$Path = "C:\$Recycle.Bin\" + "$(GetCurrentUserSID)"
+	}
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Trash folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-up.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to one level up
+.DESCRIPTION
+	This PowerShell script changes the working directory to one directory level up.
+.EXAMPLE
+	PS> .\cd-up
+	📂C:\Users
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path ".."
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-up2.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to two directory levels up
+.DESCRIPTION
+	This PowerShell script changes the working directory to two directory level up.
+.EXAMPLE
+	PS> ./cd-up2
+	📂C:\
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "../.."
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-up3.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to three directory levels up
+.DESCRIPTION
+	This PowerShell script changes the working directory to three directory levels up.
+.EXAMPLE
+	PS> ./cd-up3
+	📂C:\
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "../../.."
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-up4.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to four directory levels up
+.DESCRIPTION
+	This PowerShell script changes the working directory to four directory levels up.
+.EXAMPLE
+	PS> ./cd-up4
+	📂C:\
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "../../../.."
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-users.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the users directory
+.DESCRIPTION
+	This PowerShell script changes the working directory to the users directory.
+.EXAMPLE
+	PS> ./cd-users
+	📂C:\Users
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "$HOME/.."
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Users directory at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-videos.ps1

@@ -0,0 +1,28 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the user's videos folder
+.DESCRIPTION
+	This PowerShell script changes the working directory to the user's videos folder.
+.EXAMPLE
+	PS> ./cd-videos
+	📂C:\Users\Markus\Videos
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Path = Resolve-Path "$HOME/Videos"
+	} else {
+		$Path = [Environment]::GetFolderPath('MyVideos')
+	}
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Videos folder at 📂$Path doesn't exist (yet)" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/cd-windows.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Sets the working directory to the Windows directory
+.DESCRIPTION
+	This PowerShell script changes the working directory to the Windows directory.
+.EXAMPLE
+	PS> ./cd-windows
+	📂C:\Windows
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Path = Resolve-Path "$env:WINDIR"
+	if (-not(Test-Path "$Path" -pathType container)) { throw "Windows directory at 📂$Path doesn't exist" }
+	Set-Location "$Path"
+	"📂$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/change-wallpaper.ps1

@@ -0,0 +1,37 @@
+<#
+.SYNOPSIS
+	Changes the wallpaper
+.DESCRIPTION
+	This PowerShell script downloads a random photo from Unsplash and sets it as desktop background.
+.PARAMETER Category
+	Specifies the photo category (beach, city, ...)
+.EXAMPLE
+	PS> ./change-wallpaper 
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Category = "")
+
+function GetTempDir {
+        if ("$env:TEMP" -ne "") { return "$env:TEMP" }
+        if ("$env:TMP" -ne "")  { return "$env:TMP" }
+        if ($IsLinux) { return "/tmp" }
+        return "C:\Temp"
+}
+
+try {
+	& "$PSScriptRoot/speak-english.ps1" "Just a second..."
+
+	$Path = "$(GetTempDir)/next_wallpaper.jpg"
+	& wget -O $Path "https://source.unsplash.com/3840x2160?$Category"
+	if ($lastExitCode -ne "0") { throw "Download failed" }
+
+	& "$PSScriptRoot/set-wallpaper.ps1" -ImageFile "$Path"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-admin.ps1

@@ -0,0 +1,33 @@
+<#
+.SYNOPSIS
+        Check for admin rights
+.DESCRIPTION
+        This PowerShell script checks if the user has administrator rights.
+.EXAMPLE
+        PS> ./check-admin.ps1
+        ✅ Yes
+.LINK
+        https://github.com/fleschutz/PowerShell
+.NOTES
+        Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		# todo
+	} else {
+		$user = [Security.Principal.WindowsIdentity]::GetCurrent()
+		$principal = (New-Object Security.Principal.WindowsPrincipal $user)
+		if ($principal.IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator)) {
+			"✅ Yes"
+		} elseif ($principal.IsInRole([Security.Principal.WindowsBuiltinRole]::Guest)) {
+			"⚠️ No, guest rights only"
+		} else {
+			"⚠️ No, normal user rights only"
+		}
+	}  
+        exit 0 # success
+} catch {
+        "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+        exit 1
+}	

scripts/check-apps.ps1

@@ -0,0 +1,41 @@
+<#
+.SYNOPSIS
+	Query the app status
+.DESCRIPTION
+	This PowerShell script queries the installed applications and prints it.
+.EXAMPLE
+	PS> ./check-apps.ps1
+	✅ 119 Windows apps installed, 11 upgrades available
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		Write-Progress "Querying installed applications..."
+		$numPkgs = (apt list --installed 2>/dev/null).Count
+		$numSnaps = (snap list).Count - 1
+		Write-Progress -Completed "."
+		Write-Host "✅ $numPkgs Debian packages, $numSnaps snaps installed"
+	} else {
+		Write-Progress "Querying installed applications..."
+		$Apps = Get-AppxPackage
+		Write-Progress -Completed "."
+		Write-Host "✅ $($Apps.Count) Windows apps installed, " -noNewline
+
+		[int]$NumNonOk = 0
+		foreach($App in $Apps) { if ($App.Status -ne "Ok") { $NumNonOk++ } }
+		if ($NumNonOk -gt 0) { $Status += ", $NumNonOk non-ok" }
+		[int]$NumErrors = (Get-AppxLastError)
+		if ($NumErrors -gt 0) { $Status += ", $NumErrors errors" }
+
+		$NumUpdates = (winget upgrade --include-unknown).Count - 5
+		Write-Host "$NumUpdates upgrades available"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-bios.ps1

@@ -0,0 +1,42 @@
+<#
+.SYNOPSIS
+	Checks the BIOS status
+.DESCRIPTION
+	This PowerShell script queries the BIOS status and prints it.
+.EXAMPLE
+	PS> ./check-bios.ps1
+	✅ BIOS model P62 v02.67 by HP (version HPQOEM - 5, S/N CZC1080B01)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		Write-Progress "Querying BIOS details..."
+		$model = (sudo dmidecode -s system-product-name)
+		if ("$model" -ne "") {
+			$version = (sudo dmidecode -s bios-version)
+			$releaseDate = (sudo dmidecode -s bios-release-date)
+			$manufacturer = (sudo dmidecode -s system-manufacturer)
+			Write-Host "✅ BIOS model $model by $manufacturer (version $version of $releaseDate)"
+		}
+		Write-Progress -completed "."
+	} else {
+		$BIOS = Get-CimInstance -ClassName Win32_BIOS
+		$model = $BIOS.Name.Trim()
+		$version = $BIOS.Version.Trim()
+		$serialNumber = $BIOS.SerialNumber.Trim()
+		$manufacturer = $BIOS.Manufacturer.Trim()
+		if ($serialNumber -eq "To be filled by O.E.M.") {
+			Write-Host "✅ BIOS model $model by $manufacturer (version $version)"
+		} else {
+			Write-Host "✅ BIOS model $model by $manufacturer (version $version, S/N $serialNumber)"
+		}
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-cpu.ps1

@@ -0,0 +1,84 @@
+<#
+.SYNOPSIS
+	Checks the CPU status
+.DESCRIPTION
+	This PowerShell script queries the CPU status (name, type, speed, temperature, etc) and prints it.
+.EXAMPLE
+	PS> ./check-cpu.ps1
+	✅  Intel(R) Core(TM) i9-10900X CPU @ 3.70GHz (AMD64, 20 cores, CPU0, 3696MHz, CPU0 socket, 31.3°C)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetProcessorTemperature {
+	$temp = 99999.9 # unsupported
+	if ($IsLinux) {
+		if (Test-Path "/sys/class/thermal/thermal_zone0/temp" -pathType leaf) {
+			[int]$IntTemp = Get-Content "/sys/class/thermal/thermal_zone0/temp"
+			$temp = [math]::round($IntTemp / 1000.0, 1)
+		}
+	} else {
+		$objects = Get-WmiObject -Query "SELECT * FROM Win32_PerfFormattedData_Counters_ThermalZoneInformation" -Namespace "root/CIMV2"
+		foreach ($object in $objects) {
+			$highPrec = $object.HighPrecisionTemperature
+			$temp = [math]::round($highPrec / 100.0, 1)
+		}
+	}
+	return $temp
+}
+
+function GetProcessorArchitecture {
+	if ("$env:PROCESSOR_ARCHITECTURE" -ne "") { return "$env:PROCESSOR_ARCHITECTURE" }
+	if ($IsLinux) {
+		$Name = $PSVersionTable.OS
+		if ($Name -like "*-generic *") {
+			if ([System.Environment]::Is64BitOperatingSystem) { return "x64" } else { return "x86" }
+		} elseif ($Name -like "*-raspi *") {
+			if ([System.Environment]::Is64BitOperatingSystem) { return "ARM64" } else { return "ARM32" }
+		} else {
+			return ""
+		}
+	}
+}
+
+try {
+	Write-Progress "Querying CPU status...     "
+	$status = "✅"
+	$celsius = GetProcessorTemperature
+	if ($celsius -eq 99999.9) {
+		$temp = "no temp"
+	} elseif ($celsius -gt 50) {
+		$temp = "$($celsius)°C"
+		$status = "⚠️"
+	} elseif ($celsius -lt 0) {
+		$temp = "$($celsius)°C"
+		$status = "⚠️"
+	} else {
+		$temp = "$($celsius)°C"
+	} 
+
+	$arch = GetProcessorArchitecture
+	if ($IsLinux) {
+		$cpuName = "$arch CPU"
+		$arch = ""
+		$deviceID = ""
+		$speed = ""
+		$socket = ""
+	} else {
+		$details = Get-WmiObject -Class Win32_Processor
+		$cpuName = $details.Name.trim()
+		$arch = "$arch, "
+		$deviceID = "$($details.DeviceID), "
+		$speed = "$($details.MaxClockSpeed)MHz, "
+		$socket = "$($details.SocketDesignation) socket, "
+	}
+	$cores = [System.Environment]::ProcessorCount
+	Write-Progress -completed " "
+	Write-Host "$status $cpuName ($($arch)$cores cores, $($deviceID)$($speed)$($socket)$temp)"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-day.ps1

@@ -0,0 +1,23 @@
+<#
+.SYNOPSIS
+	Determines the current day 
+.DESCRIPTION
+	This PowerShell script determines and speaks the current day by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-day
+	✔️ It's Sunday.
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	[system.threading.thread]::currentthread.currentculture=[system.globalization.cultureinfo]"en-US"
+	$Weekday = (Get-Date -format "dddd")
+	& "$PSScriptRoot/speak-english.ps1" "It's $Weekday."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-dns.ps1

@@ -0,0 +1,39 @@
+<#
+.SYNOPSIS
+	Check the DNS resolution 
+.DESCRIPTION
+	This PowerShell script measures the DNS resolution speed (using 100 popular domains) and prints it.
+.EXAMPLE
+	PS> ./check-dns.ps1
+	✅ DNS resolves 56.5 domains per second
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+ 
+try {
+	Write-Progress "Measuring DNS resolution..."
+	$table = Import-CSV "$PSScriptRoot/../data/popular-domains.csv"
+	$numRows = $table.Length
+
+	$stopWatch = [system.diagnostics.stopwatch]::startNew()
+	if ($IsLinux) {
+		foreach($row in $table){$nop=dig $row.Domain +short}
+	} else {
+		foreach($row in $table){$nop=Resolve-DNSName $row.Domain}
+	}
+	[float]$elapsed = $stopWatch.Elapsed.TotalSeconds
+
+	Write-Progress -completed " "
+	$average = [math]::round($numRows / $elapsed, 1)
+	if ($average -lt 10.0) {
+		Write-Host "⚠️ DNS resolves $average domains per second only"
+	} else {  
+		Write-Host "✅ DNS resolves $average domains per second"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-drive-space.ps1

@@ -0,0 +1,39 @@
+<#
+.SYNOPSIS
+	Checks a drive for free space left 
+.DESCRIPTION
+	This PowerShell script checks a drive for free space left (20 GB by default).
+.PARAMETER Drive
+	Specifies the drive to check
+.PARAMETER MinLevel
+	Specifies the minimum level in Gigabyte
+.EXAMPLE
+	PS> ./check-drive-space C
+	✔️ 172 GB left on drive C (61 of 233 GB used)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Drive = "", [int]$MinLevel = 20) # minimum level in GB
+
+try {
+	if ($Drive -eq "" ) { $Drive = read-host "Enter drive to check" }
+
+	$DriveDetails = (get-psdrive $Drive)
+	[int]$Free = (($DriveDetails.Free / 1024) / 1024) / 1024
+	[int]$Used = (($DriveDetails.Used / 1024) / 1024) / 1024
+	[int]$Total = ($Used + $Free)
+
+	if ($Free -lt $MinLevel) {
+        	write-warning "Drive $Drive has only $Free GB left to use! ($Used of $Total GB used, minimum is $MinLevel GB)"
+		exit 1
+	}
+
+	& "$PSScriptRoot/speak-english.ps1" "Drive $Drive has $Free GB left ($Total GB total)"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-drives.ps1

@@ -0,0 +1,61 @@
+<#
+.SYNOPSIS
+	Checks the drive space
+.DESCRIPTION
+	This PowerShell script queries the free space of all drives and prints it.
+.PARAMETER minLevel
+	Specifies the minimum warning level (10 GB by default)
+.EXAMPLE
+	PS> ./check-drives.ps1
+	✅ Drive C: uses 49%, 512GB free of 1TB
+	✅ Drive D: uses 84%, 641GB free of 4TB
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([int64]$minLevel = 10) # 10 GB minimum
+
+function Bytes2String { param([int64]$bytes)
+        if ($bytes -lt 1000) { return "$bytes bytes" }
+        $bytes /= 1000
+        if ($bytes -lt 1000) { return "$($bytes)KB" }
+        $bytes /= 1000
+        if ($bytes -lt 1000) { return "$($bytes)MB" }
+        $bytes /= 1000
+        if ($bytes -lt 1000) { return "$($bytes)GB" }
+        $bytes /= 1000
+        if ($bytes -lt 1000) { return "$($bytes)TB" }
+        $bytes /= 1000
+        return "$($bytes)PB"
+}
+
+try {
+	Write-Progress "Querying drives..."
+	$drives = Get-PSDrive -PSProvider FileSystem
+	$minLevel *= 1000 * 1000 * 1000
+	Write-Progress -completed " "
+	foreach($drive in $drives) {
+		$details = (Get-PSDrive $drive.Name)
+		if ($IsLinux) { $name = $drive.Name } else { $name = $drive.Name + ":" }
+		[int64]$free = $details.Free
+ 		[int64]$used = $details.Used
+		[int64]$total = ($used + $free)
+
+		if ($total -eq 0) {
+			Write-Host "✅ Drive $name is empty"
+		} elseif ($free -eq 0) {
+			Write-Host "⚠️ Drive $name with $(Bytes2String $total) is full"
+		} elseif ($free -lt $minLevel) {
+			Write-Host "⚠️ Drive $name with $(Bytes2String $total) is nearly full, $(Bytes2String $free) free"
+		} else {
+			[int]$percent = ($used * 100) / $total
+			Write-Host "✅ Drive $name uses $percent%, $(Bytes2String $free) free of $(Bytes2String $total)"
+		}
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-dusk.ps1

@@ -0,0 +1,44 @@
+<#
+.SYNOPSIS
+	Checks the time of dusk 
+.DESCRIPTION
+	This PowerShell script queries the time of dusk and answers by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-dusk.ps1
+	Dusk is in 2 hours at 8 PM.
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function TimeSpanToString { param([TimeSpan]$Delta)
+        $Result = ""
+        if ($Delta.Hours -eq 1) {       $Result += "1 hour and "
+        } elseif ($Delta.Hours -gt 1) { $Result += "$($Delta.Hours) hours and "
+        }
+        if ($Delta.Minutes -eq 1) { $Result += "1 minute"
+        } else {                    $Result += "$($Delta.Minutes) minutes"
+        }
+        return $Result
+}
+
+try {
+	[system.threading.thread]::currentThread.currentCulture=[system.globalization.cultureInfo]"en-US"
+	$String = (Invoke-WebRequest http://wttr.in/?format="%d" -UserAgent "curl" -useBasicParsing).Content
+	$Hour,$Minute,$Second = $String -split ':'
+	$Dusk = Get-Date -Hour $Hour -Minute $Minute -Second $Second
+	$Now = [DateTime]::Now
+	if ($Now -lt $Dusk) {
+                $TimeSpan = TimeSpanToString($Dusk - $Now)
+                $Reply = "Dusk is in $TimeSpan at $($Dusk.ToShortTimeString())."
+        } else {
+                $TimeSpan = TimeSpanToString($Now - $Dusk)
+                $Reply = "Dusk was $TimeSpan ago at $($Dusk.ToShortTimeString())."
+        }
+	Write-Output $Reply
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-easter-sunday.ps1

@@ -0,0 +1,28 @@
+<#
+.SYNOPSIS
+	Checks the time until Easter Sunday
+.DESCRIPTION
+	This PowerShell script checks the time until Easter Sunday and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-easter-sunday
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Now = [DateTime]::Now
+	$Easter = [Datetime]("04/17/2022")
+	if ($Now -lt $Easter) {
+		$Diff = $Easter – $Now
+		& "$PSScriptRoot/speak-english.ps1" "Easter Sunday on April 17 is in $($Diff.Days) days."
+	} else {
+		$Diff = $Now - $Easter
+		& "$PSScriptRoot/speak-english.ps1" "Easter Sunday on April 17 was $($Diff.Days) days ago."
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-file-system.ps1

@@ -0,0 +1,32 @@
+<#
+.SYNOPSIS
+	Checks the file system of a drive (needs admin rights)
+.DESCRIPTION
+	This PowerShell script checks the file system of a drive. It needs admin rights.
+.PARAMETER Drive
+	Specifies the drive to check
+.EXAMPLE
+	PS> ./check-file-system C
+	✔️ file system on drive C is clean
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+#Requires -RunAsAdministrator
+
+param([string]$Drive = "")
+
+try {
+	if ($Drive -eq "" ) { $Drive = read-host "Enter drive (letter) to check" }
+
+	$Result = repair-volume -driveLetter $Drive -scan
+	if ($Result -ne "NoErrorsFound") { throw "'repair-volume' failed" }
+
+	& "$PSScriptRoot/speak-english.ps1" "File system on drive $Drive is clean."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-file.ps1

@@ -0,0 +1,128 @@
+<#
+.SYNOPSIS
+        Checks a file
+.DESCRIPTION
+        This PowerShell script determines and prints the file type of the given file.
+.PARAMETER Path
+        Specifies the path to the file
+.EXAMPLE
+        PS> ./check-file C:\my.exe
+.LINK
+        https://github.com/fleschutz/PowerShell
+.NOTES
+        Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Path = "")
+
+
+function Check-Header { param( $path )
+    $path = Resolve-Path $path
+
+    # Hexidecimal signatures for expected files
+    $known = @'
+"Extension","Header"
+"3gp","66 74 79 70 33 67"
+"7z","37 7A BC AF 27 1C"
+"8sv","38 53 56 58"
+"8svx","46 4F 52 4D nn nn nn nn"
+"acbm","46 4F 52 4D nn nn nn nn"
+"aif","41 49 46 46"
+"aiff","46 4F 52 4D nn nn nn nn"
+"anbm","46 4F 52 4D nn nn nn nn"
+"anim","46 4F 52 4D nn nn nn nn "
+"asf","30 26 B2 75 8E 66 CF 11"
+"avi","52 49 46 46 nn nn nn nn "
+"bac","42 41 43 4B 4D 49 4B 45"
+"bpg","42 50 47 FB"
+"cab","4D 53 43 46"
+"cin","80 2A 5F D7"
+"class","CA FE BA BE"
+"cmus","46 4F 52 4D nn nn nn nn"
+"cr2","49 49 2A 00 10 00 00 00"
+"crx","43 72 32 34"
+"cwk","05 07 00 00 42 4F 42 4F"
+"cwk","06 07 E1 00 42 4F 42 4F"
+"dat","50 4D 4F 43 43 4D 4F 43"
+"DBA","BE BA FE CA"
+"DBA","00 01 42 44"
+"dex","64 65 78 0A 30 33 35 00"
+"djvu","41 54 26 54 46 4F 52 4D nn nn nn nn 44 4A 56"
+"dmg","78 01 73 0D 62 62 60"
+"doc","D0 CF 11 E0 A1 B1 1A E1"
+"dpx","53 44 50 58"
+"exr","76 2F 31 01"
+"fax","46 41 58 58"
+"faxx","46 4F 52 4D nn nn nn nn"
+"fh8","41 47 44 33"
+"fits","53 49 4D 50 4C 45 20 20"
+"flac","66 4C 61 43"
+"flif","46 4C 49 46"
+"ftxt","46 4F 52 4D nn nn nn nn"
+"gif","47 49 46 38 37 61"
+"ico","00 00 01 00"
+"idx","49 4E 44 58"
+"iff","41 43 42 4D"
+"iff","41 4E 42 4D"
+"iff","41 4E 49 4D"
+"iff","46 4F 52 4D nn nn nn nn"
+"ilbm","46 4F 52 4D nn nn nn nn"
+"iso","43 44 30 30 31"
+"jpg","FF D8 FF DB"
+"lbm","49 4C 42 4D"
+"lz","4C 5A 49 50"
+"lz4","04 22 4D 18"
+"mid","4D 54 68 64"
+"mkv","1A 45 DF A3"
+"MLV","4D 4C 56 49"
+"mus","43 4D 55 53"
+"nes","4E 45 53 1A"
+"ods","50 4B 05 06"
+"ogg","4F 67 67 53"
+"PDB","00 00 00 00 00 00 00 00"
+"pdf","25 50 44 46"
+"png","89 50 4E 47 0D 0A 1A 0A"
+"ps","25 21 50 53"
+"psd","38 42 50 53"
+"rar","52 61 72 21 1A 07 00"
+"rar","52 61 72 21 1A 07 01 00"
+"smu","53 4D 55 53"
+"smus","46 4F 52 4D nn nn nn nn"
+"stg","4D 49 4C 20"
+"tar","75 73 74 61 72 00 30 30"
+"TDA","00 01 44 54"
+"tif","49 49 2A 00"
+"toast","45 52 02 00 00 00"
+"tox","74 6F 78 33"
+"txt","46 54 58 54"
+"vsdx","50 4B 07 08"
+"wav","52 49 46 46 nn nn nn nn"
+"wma","A6 D9 00 AA 00 62 CE 6C"
+"xar","78 61 72 21"
+"yuv","59 55 56 4E"
+"yuvn","46 4F 52 4D nn nn nn nn"
+"zip","50 4B 03 04"
+"epub","50 4B 03 04 0A 00 02 00"
+'@ | ConvertFrom-Csv | sort {$_.header.length} -Descending
+    
+    $known | % {$_.header = $_.header -replace '\s'}
+    
+    try {
+        # Get content of each file (up to 4 bytes) for analysis
+        $HeaderAsHexString = New-Object System.Text.StringBuilder
+        [Byte[]](Get-Content -Path $path -TotalCount 4 -Encoding Byte -ea Stop) | % {
+            if (("{0:X}" -f $_).length -eq 1) {
+                $null = $HeaderAsHexString.Append('0{0:X}' -f $_)
+            } else {
+                $null = $HeaderAsHexString.Append('{0:X}' -f $_)
+            }
+        }
+      
+        # Validate file header
+        # might change .startswith() to -match.
+        # might remove 'select -f 1' to get all possible matching extensions, or just somehow make it a better match.
+        $known | ? {$_.header.startswith($HeaderAsHexString.ToString())} | select -f 1 | % {$_.extension}
+    } catch {}
+}
+
+Check-Header $Path

scripts/check-firewall.ps1

@@ -0,0 +1,31 @@
+<#
+.SYNOPSIS
+	Checks the firewall status
+.DESCRIPTION
+	This PowerShell script queries the status of the firewall and prints it.
+.EXAMPLE
+	PS> ./check-firewall.ps1
+	✅ Firewall enabled
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		Write-Host "✅ Firewall " -noNewline
+		& sudo ufw status
+	} else {
+		$enabled = (gp 'HKLM:\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile').EnableFirewall
+		if ($enabled) {
+			Write-Host "✅ Firewall enabled"
+		} else {
+			Write-Host "⚠️ Firewall disabled"
+		}
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-gpu.ps1

@@ -0,0 +1,46 @@
+<#
+.SYNOPSIS
+        Checks the GPU status
+.DESCRIPTION
+        This PowerShell script queries the GPU status and prints it.
+.EXAMPLE
+        PS> ./check-gpu.ps1
+	✅ NVIDIA Quadro P400 GPU (2GB RAM, 3840x2160 pixels, 32-bit, 59Hz, driver 31.0.15.1740, status OK)
+.LINK
+        https://github.com/fleschutz/PowerShell
+.NOTES
+        Author: Markus Fleschutz | License: CC0
+#>
+
+function Bytes2String { param([int64]$Bytes)
+        if ($Bytes -lt 1000) { return "$Bytes bytes" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)KB" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)MB" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)GB" }
+        $Bytes /= 1000
+        return "$($Bytes)TB"
+}
+
+try {
+	if ($IsLinux) {
+		# TODO
+	} else {
+		$Details = Get-WmiObject Win32_VideoController
+		$Model = $Details.Caption
+		$RAMSize = $Details.AdapterRAM
+		$ResWidth = $Details.CurrentHorizontalResolution
+		$ResHeight = $Details.CurrentVerticalResolution
+		$BitsPerPixel = $Details.CurrentBitsPerPixel
+		$RefreshRate = $Details.CurrentRefreshRate
+		$DriverVersion = $Details.DriverVersion
+		$Status = $Details.Status
+		Write-Host "✅ $Model GPU ($(Bytes2String $RAMSize) RAM, $($ResWidth)x$($ResHeight) pixels, $($BitsPerPixel)-bit, $($RefreshRate)Hz, driver $DriverVersion, status $Status)"
+	}
+	exit 0 # success
+} catch {
+        "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+        exit 1
+}

scripts/check-hardware.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Checks the hardware
+.DESCRIPTION
+	This PowerShell script queries the hardware details of the local computer and prints it.
+.EXAMPLE
+	PS> ./check-hardware.ps1
+  
+	H A R D W A R E
+	✅ Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz (CPU0, 2701MHz, socket U3E1, 30.1°C)
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+" "
+& "$PSScriptRoot/write-green.ps1" "   H A R D W A R E"
+& "$PSScriptRoot/check-cpu.ps1"
+& "$PSScriptRoot/check-ram.ps1"
+& "$PSScriptRoot/check-gpu.ps1"
+& "$PSScriptRoot/check-smart-devices.ps1"
+& "$PSScriptRoot/check-drives.ps1"
+& "$PSScriptRoot/check-power.ps1"
+exit 0 # success

scripts/check-health.ps1

@@ -0,0 +1,21 @@
+<#
+.SYNOPSIS
+	Checks the system health 
+.DESCRIPTION
+	This PowerShell script queries the system health of the local computer (hardware, software, and network) and prints it.
+.EXAMPLE
+	PS> ./check-health.ps1
+  
+	H A R D W A R E
+	✅ Intel(R) Core(TM) i5-6400 CPU @ 2.70GHz (CPU0, 2701MHz, socket U3E1, 30.1°C)
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+& "$PSScriptRoot/check-hardware.ps1"
+& "$PSScriptRoot/check-software.ps1"
+& "$PSScriptRoot/check-network.ps1"
+exit 0 # success

scripts/check-independence-day.ps1

@@ -0,0 +1,28 @@
+<#
+.SYNOPSIS
+	Checks the time until Independence Day
+.DESCRIPTION
+	This PowerShell script checks the time until Indepence Day and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-independence-day.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Now = [DateTime]::Now
+	$IndependenceDay = [Datetime]("07/04/" + $Now.Year)
+	if ($Now -lt $IndependenceDay) {
+		$Diff = $IndependenceDay – $Now
+		& "$PSScriptRoot/speak-english.ps1" "Independence Day on July 4th is in $($Diff.Days) days."
+	} else {
+		$Diff = $Now - $IndependenceDay
+		& "$PSScriptRoot/speak-english.ps1" "Independence Day on July 4th was $($Diff.Days) days ago."
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-ipv4-address.ps1

@@ -0,0 +1,41 @@
+<#
+.SYNOPSIS
+	Checks an IPv4 address for validity
+.DESCRIPTION
+	This PowerShell script checks the given IPv4 address for validity.
+.PARAMETER Address
+	Specifies the IPv4 address to check
+.EXAMPLE
+	PS> ./check-ipv4-address 192.168.11.22
+	✔️ IPv4 192.168.11.22 is valid
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Address = "")
+
+function IsIPv4AddressValid { param([string]$IP)
+	$RegEx = "^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"
+	if ($IP -match $RegEx) {
+		return $true
+	} else {
+		return $false
+	}
+}
+
+try {
+	if ($Address -eq "" ) { $Address = read-host "Enter IPv4 address to validate" }
+
+	if (IsIPv4AddressValid $Address) {
+		"✔️ IPv4 $Address is valid"
+		exit 0 # success
+	} else {
+		write-warning "Invalid IPv4 address: $Address"
+		exit 1
+	}
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-ipv6-address.ps1

@@ -0,0 +1,55 @@
+<#
+.SYNOPSIS
+	Checks an IPv6 address for validity
+.DESCRIPTION
+	This PowerShell script checks the given IPv6 address for validity
+.PARAMETER Address
+	Specifies the IPv6 address to check
+.EXAMPLE
+	PS> ./check-ipv6-address fe80::200:5aee:feaa:20a2
+	✔️ IPv6 fe80::200:5aee:feaa:20a2 is valid
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Address = "")
+
+function IsIPv6AddressValid { param([string]$IP)
+    $IPv4Regex = '(((25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2})\.){3}(25[0-5]|2[0-4][0-9]|[0-1]?[0-9]{1,2}))'
+    $G = '[a-f\d]{1,4}'
+    $Tail = @(":",
+    "(:($G)?|$IPv4Regex)",
+    ":($IPv4Regex|$G(:$G)?|)",
+    "(:$IPv4Regex|:$G(:$IPv4Regex|(:$G){0,2})|:)",
+    "((:$G){0,2}(:$IPv4Regex|(:$G){1,2})|:)",
+    "((:$G){0,3}(:$IPv4Regex|(:$G){1,2})|:)",
+    "((:$G){0,4}(:$IPv4Regex|(:$G){1,2})|:)")
+    [string] $IPv6RegexString = $G
+    $Tail | foreach { $IPv6RegexString = "${G}:($IPv6RegexString|$_)" }
+    $IPv6RegexString = ":(:$G){0,5}((:$G){1,2}|:$IPv4Regex)|$IPv6RegexString"
+    $IPv6RegexString = $IPv6RegexString -replace '\(' , '(?:' # make all groups non-capturing
+    [regex] $IPv6Regex = $IPv6RegexString
+    if ($IP -imatch "^$IPv6Regex$") {
+    	return $true
+    } else {
+    	return $false
+    }
+}
+
+try {
+	if ($Address -eq "" ) {
+		$Address = read-host "Enter IPv6 address to validate"
+	}
+	if (IsIPv6AddressValid $Address) {
+		"✔️  IPv6 $Address is valid"
+		exit 0 # success
+	} else {
+		write-warning "Invalid IPv6 address: $Address"
+		exit 1
+	}
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-iss-position.ps1

@@ -0,0 +1,22 @@
+<#
+.SYNOPSIS
+	Checks the ISS position
+.DESCRIPTION
+	This PowerShell script queries the position of the International Space Station (ISS) and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-iss-position
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$ISS = (Invoke-WebRequest "http://api.open-notify.org/iss-now.json" -userAgent "curl" -useBasicParsing).Content | ConvertFrom-Json
+
+	& "$PSScriptRoot/speak-english.ps1" "The International Space Station is currently at $($ISS.iss_position.longitude)° longitude and $($ISS.iss_position.latitude)° latitude."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-mac-address.ps1

@@ -0,0 +1,43 @@
+<#
+.SYNOPSIS
+	Checks the given MAC address for validity
+.DESCRIPTION
+	This PowerShell script checks the given MAC address for validity
+	Supported MAC address formats are: 00:00:00:00:00:00 or 00-00-00-00-00-00 or 000000000000.
+.PARAMETER MAC
+	Specifies the MAC address to check
+.EXAMPLE
+	PS> ./check-mac-address 11:22:33:44:55:66
+	✔️ MAC address 11:22:33:44:55:66 is valid
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$MAC = "")
+
+function IsMACAddressValid { param([string]$mac)
+	$RegEx = "^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})|([0-9A-Fa-f]{2}){6}$"
+	if ($mac -match $RegEx) {
+		return $true
+	} else {
+		return $false
+	}
+}
+
+try {
+	if ($MAC -eq "" ) {
+		$MAC = read-host "Enter MAC address to validate"
+	}
+	if (IsMACAddressValid $MAC) {
+		"✔️ MAC address $MAC is valid"
+		exit 0 # success
+	} else {
+		write-warning "Invalid MAC address: $MAC"
+		exit 1
+	}
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-midnight.ps1

@@ -0,0 +1,41 @@
+<#
+.SYNOPSIS
+	Checks for Midnight
+.DESCRIPTION
+	This PowerShell script checks the time until Midnight and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-midnight
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function TimeSpanToString { param([TimeSpan]$Delta)
+	$Result = ""
+	if ($Delta.Hours -eq 1) {       $Result += "1 hour and "
+	} elseif ($Delta.Hours -gt 1) { $Result += "$($Delta.Hours) hours and "
+	}
+	if ($Delta.Minutes -eq 1) { $Result += "1 minute"
+	} else {                    $Result += "$($Delta.Minutes) minutes"
+	}
+	return $Result
+}
+
+try {
+	$Now = [DateTime]::Now
+	if ($Now.Hour -lt 12) {
+		$Midnight = Get-Date -Hour 0 -Minute 0 -Second 0
+		$TimeSpan = TimeSpanToString($Now - $Midnight)
+		$Reply = "Midnight was $TimeSpan ago."
+	} else {
+		$Midnight = Get-Date -Hour 23 -Minute 59 -Second 59
+		$TimeSpan = TimeSpanToString($Midnight - $Now)
+		$Reply = "Midnight is in $TimeSpan."
+	}
+	& "$PSScriptRoot/speak-english.ps1" "$Reply"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-month.ps1

@@ -0,0 +1,23 @@
+<#
+.SYNOPSIS
+	Gets the current month name
+.DESCRIPTION
+	This PowerShell script determines and speaks the current month name by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-month
+	✔️ It's December.
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	[system.threading.thread]::currentthread.currentculture=[system.globalization.cultureinfo]"en-US"
+	$MonthName = (Get-Date -UFormat %B)
+	& "$PSScriptRoot/speak-english.ps1" "It's $MonthName."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-moon-phase.ps1

@@ -0,0 +1,43 @@
+<#
+.SYNOPSIS
+	Checks the Moon phase
+.DESCRIPTION
+	This PowerShell script determines the Moon phase and answers by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-moon-phase
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$LunarCycle = 29.53058868 # synodic period in days, time between successive new moons
+	$LunarHalfCycle = $LunarCycle / 2.0
+	$Phases = @("New moon", "Waxing crescent moon", "First quarter moon", "Waxing gibbous moon", "Full moon", "Waning gibbous moon", "Last quarter moon", "Waning crescent moon")
+	$PhaseLength = $LunarCycle / 8.0
+	$PhaseHalfLength = $PhaseLength / 2.0
+
+	$RefDate = get-date -Year 2021 -Month 12 -Day 4 -Hour 6 -Minute 43 # Dec 4, 2021 06:43 UTC [New Moon]
+	$Now = get-date
+	$TimeInterval = New-TimeSpan -Start $RefDate -End $Now
+	$Days = $TimeInterval.TotalDays
+
+	$MDays = $Days % $LunarCycle
+	$PhaseIndex = [int]($MDays * (8.0 / $LunarCycle))
+
+	$Visibility = [math]::Round((($Days % $LunarHalfCycle) * 100) / $LunarHalfCycle)
+	$Reply = "$($Phases[$PhaseIndex]) with $($Visibility)% visibility"
+
+	$MoonAge = [math]::Round($Days % $LunarCycle)	
+	if ($MoonAge -eq "0") {	      $Reply += " today"
+	} elseif ($MoonAge -eq "1") { $Reply += " since yesterday"
+	} else {                      $Reply += ", last new moon was $MoonAge days ago"
+	}
+
+	& "$PSScriptRoot/speak-english.ps1" "$Reply"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-network.ps1

@@ -0,0 +1,25 @@
+<#
+.SYNOPSIS
+	Checks the network details
+.DESCRIPTION
+	This PowerShell script queries the network details of the local computer and prints it.
+.EXAMPLE
+	PS> ./check-network.ps1
+
+	N E T W O R K
+	✅ Online with 30ms latency (16ms..56ms, 0/10 loss)
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+" "
+& "$PSScriptRoot/write-green.ps1" "   N E T W O R K"
+& "$PSScriptRoot/check-ping.ps1"
+& "$PSScriptRoot/check-firewall"
+& "$PSScriptRoot/check-dns.ps1"
+& "$PSScriptRoot/check-vpn.ps1"
+& "$PSScriptRoot/list-public-ip.ps1"
+exit 0 # success

scripts/check-new-year.ps1

@@ -0,0 +1,27 @@
+<#
+.SYNOPSIS
+	Checks the time until New Year
+.DESCRIPTION
+	This PowerShell script checks the time until New Year and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-new-year
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Now = [DateTime]::Now
+	$NewYear = [Datetime]("12/31/" + $Now.Year)
+	$Days = ($NewYear – $Now).Days + 1
+	if ($Days -gt 1) {
+		& "$PSScriptRoot/speak-english.ps1" "New Year is in $Days days."
+	} elseif ($Days -eq 1) {
+		& "$PSScriptRoot/speak-english.ps1" "New Year is tomorrow."
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-noon.ps1

@@ -0,0 +1,40 @@
+<#
+.SYNOPSIS
+	Checks for Noon
+.DESCRIPTION
+	This PowerShell script checks the time until Noon and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-noon
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function TimeSpanToString { param([TimeSpan]$Delta)
+	$Result = ""
+	if ($Delta.Hours -eq 1) {       $Result += "1 hour and "
+	} elseif ($Delta.Hours -gt 1) { $Result += "$($Delta.Hours) hours and "
+	}
+	if ($Delta.Minutes -eq 1) { $Result += "1 minute"
+	} else {                    $Result += "$($Delta.Minutes) minutes"
+	}
+	return $Result
+}
+
+try {
+	$Now = [DateTime]::Now
+	$Noon = Get-Date -Hour 12 -Minute 0 -Second 0
+	if ($Now -lt $Noon) {
+		$TimeSpan = TimeSpanToString($Noon - $Now)
+		$Reply = "Noon is in $TimeSpan."
+	} else {
+		$TimeSpan = TimeSpanToString($Now - $Noon)
+		$Reply = "Noon was $TimeSpan ago."
+	}
+	& "$PSScriptRoot/speak-english.ps1" "$Reply"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-os.ps1

@@ -0,0 +1,39 @@
+<#
+.SYNOPSIS
+	Checks the OS status
+.DESCRIPTION
+	This PowerShell script queries the operating system status and prints it.
+.EXAMPLE
+	PS> ./check-os.ps1
+	✅ Windows 10 Pro 64-bit (v10.0.19045, since 6/22/2021, S/N 00123-45678-15135-AAOEM, P/K AB123-CD456-EF789-GH000-WFR6P)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$Name = $PSVersionTable.OS
+		if ([System.Environment]::Is64BitOperatingSystem) { $Arch = "64-bit" } else { $Arch = "32-bit" }
+		Write-Host "✅ $Name $Arch"
+	} else {
+		$OS = Get-WmiObject -class Win32_OperatingSystem
+		$Name = $OS.Caption -Replace "Microsoft Windows","Windows"
+		$Arch = $OS.OSArchitecture
+		$Version = $OS.Version
+
+		[system.threading.thread]::currentthread.currentculture = [system.globalization.cultureinfo]"en-US"
+		$OSDetails = Get-CimInstance Win32_OperatingSystem
+		$BuildNo = $OSDetails.BuildNumber
+		$Serial = $OSDetails.SerialNumber
+		$InstallDate = $OSDetails.InstallDate
+
+		$ProductKey = (Get-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform" -Name BackupProductKeyDefault).BackupProductKeyDefault
+		Write-Host "✅ $Name $Arch (v$Version, since $($InstallDate.ToShortDateString()), S/N $Serial, P/K $ProductKey)"
+	} 
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-outlook.ps1

@@ -0,0 +1,31 @@
+<#
+.SYNOPSIS
+	Checks Outlook's inbox 
+.DESCRIPTION
+	This PowerShell script checks the inbox of Outlook for new/unread mails.
+.EXAMPLE
+	PS> ./check-outlook.ps1
+	✅ No new mails.
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	Add-Type -assembly "Microsoft.Office.Interop.Outlook"
+	$Outlook = New-Object -comobject Outlook.Application
+	$Namespace = $Outlook.GetNameSpace("MAPI")
+	$Inbox = $Namespace.GetDefaultFolder(6) # 6 = olFolderInbox
+	[int]$Unread = 0
+	foreach($Mail in $Inbox.Items) {
+		if ($Mail.Unread -eq $false) { continue }
+		"⚠️ New mail '$($Mail.Subject)' from $($Mail.SenderName)."
+		$Unread++
+	}
+	if ($Unread -eq 0) { "✅ No new mails." }
+	exit 0 # success
+} catch {
+	"Sorry: $($Error[0])"
+	exit 1
+}

scripts/check-password.ps1

@@ -0,0 +1,52 @@
+<#
+.SYNOPSIS
+        Checks a password
+.DESCRIPTION
+        This PowerShell script checks the security status of the given password by haveibeenpwned.com
+.EXAMPLE
+        PS> ./check-password qwerty
+	⚠️  Bad password, it's already listed in 10584568 known security breaches!
+.LINK
+        https://github.com/fleschutz/PowerShell
+.NOTES
+        Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$password = "")
+
+function CalculateHashSHA1 ([string]$string) {
+    $sha1 = New-Object System.Security.Cryptography.SHA1CryptoServiceProvider
+    $encoder = New-Object System.Text.UTF8Encoding
+    $bytes = $encoder.GetBytes($string)
+    $hash = ($sha1.ComputeHash($bytes) | % { $_.ToString("X2") }) -join ''
+    return $hash
+}
+
+function Get-PasswordPwnCount { [CmdletBinding()] param([string]$pass)
+    $hash  = CalculateHashSHA1 $pass
+    try {
+        $uri = "https://api.pwnedpasswords.com/range/$($hash.Substring(0,5))"
+        $list  = -split (Invoke-RestMethod $uri -Verbose:($PSBoundParameters['Verbose'] -eq $true) -ErrorAction Stop) # split into separate strings
+        $pwn = $list | Select-String $hash.Substring(5,35) # grep
+        if ($pwn) { $count = [int] ($pwn.ToString().Split(':')[1]) } else { $count = 0 }
+        return $count
+    }
+    catch {
+        Write-Error "Error Calling HIBP API"
+        return $null
+    }
+}
+
+try {
+	if ($password -eq "") { $password = Read-Host "Enter the password" }
+	$NumBreaches = Get-PasswordPwnCount $password
+	if ($NumBreaches -eq 0) {
+		"👍 Password seems good, it's not listed in any known security breach as of today." 
+	} else {
+		"⚠️ Bad password, it's listed already in $NumBreaches known security breaches!"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-pending-reboot.ps1

@@ -0,0 +1,73 @@
+<#
+.SYNOPSIS
+	Check for pending reboots
+.DESCRIPTION
+	This PowerShell script queries pending operating system reboots and prints it.
+.EXAMPLE
+	./check-pending-reboot.ps1
+	✅ No pending reboot
+.LINK
+        https://github.com/fleschutz/PowerShell
+.NOTES
+        Author: Markus Fleschutz | License: CC0
+#>
+
+function Test-RegistryValue { param([parameter(Mandatory=$true)][ValidateNotNullOrEmpty()]$Path, [parameter(Mandatory=$true)] [ValidateNotNullOrEmpty()]$Value)
+	try {
+		Get-ItemProperty -Path $Path -Name $Value -EA Stop
+		return $true
+	} catch {
+		return $false
+	}
+}
+
+try {
+	$Reason = ""
+	if ($IsLinux) {
+		if (Test-Path "/var/run/reboot-required") {
+			$Reason = "found: /var/run/reboot-required"
+			Write-Host "⚠️ Pending reboot ($Reason)"
+		}
+	} else {
+		if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired") {
+			$Reason += ", ...\Auto Update\RebootRequired"
+		}
+		if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\PostRebootReporting") {
+			$Reason += ", ...\Auto Update\PostRebootReporting"
+		}
+		if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing\RebootPending") {
+			$Reason += ", ...\Component Based Servicing\RebootPending"
+		}
+		if (Test-Path -Path "HKLM:\SOFTWARE\Microsoft\ServerManager\CurrentRebootAttempts") {
+			$Reason += ", ...\ServerManager\CurrentRebootAttempts"
+		}
+		if (Test-RegistryValue -Path "HKLM:\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing" -Value "RebootInProgress") {
+			$Reason += ", ...\CurrentVersion\Component Based Servicing with 'RebootInProgress'"
+		}
+		if (Test-RegistryValue -Path "HKLM:\Software\Microsoft\Windows\CurrentVersion\Component Based Servicing" -Value "PackagesPending") {
+			$Reason += ", '...\CurrentVersion\Component Based Servicing' with 'PackagesPending'"
+		}
+		if (Test-RegistryValue -Path "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager" -Value "PendingFileRenameOperations2") {
+			$Reason += ", '...\CurrentControlSet\Control\Session Manager' with 'PendingFileRenameOperations2'"
+		}
+		if (Test-RegistryValue -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce" -Value "DVDRebootSignal") {
+			$Reason += ", '...\Windows\CurrentVersion\RunOnce' with 'DVDRebootSignal'"
+		}
+		if (Test-RegistryValue -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Netlogon" -Value "JoinDomain") {
+			$Reason += ", '...\CurrentControlSet\Services\Netlogon' with 'JoinDomain'"
+		}
+		if (Test-RegistryValue -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Netlogon" -Value "AvoidSpnSet") {
+			$Reason += ", '...\CurrentControlSet\Services\Netlogon' with 'AvoidSpnSet'"
+		}
+		if ($Reason -ne "") {
+			Write-Host "⚠️ Pending reboot (registry contains $($Reason.substring(2)))"
+		}
+	}
+	if ($Reason -eq "") {
+		Write-Host "✅ No pending reboot"
+	}
+	exit 0 # success
+} catch {
+        "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+        exit 1
+}

scripts/check-ping.ps1

@@ -0,0 +1,47 @@
+<#
+.SYNOPSIS
+	Checks the ping latency 
+.DESCRIPTION
+	This PowerShell script measures the ping roundtrip times from the local computer to other computers (10 Internet servers by default).
+.PARAMETER hosts
+	Specifies the hosts to check, seperated by commata (default is: amazon.com,bing.com,cnn.com,dropbox.com,github.com,google.com,live.com,meta.com,x.com,youtube.com)
+.EXAMPLE
+	PS> ./check-ping.ps1
+	✅ Online with 18ms latency average (13ms...109ms, 0/10 ping loss)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$hosts = "bing.com,cnn.com,dropbox.com,github.com,google.com,ibm.com,live.com,meta.com,x.com,youtube.com")
+
+try {
+	$hostsArray = $hosts.Split(",")
+	$parallelTasks = $hostsArray | foreach {
+		(New-Object Net.NetworkInformation.Ping).SendPingAsync($_,750)
+	}
+	[int]$min = 9999999
+	[int]$max = [int]$avg = [int]$success = 0
+	[int]$total = $hostsArray.Count
+	[Threading.Tasks.Task]::WaitAll($parallelTasks)
+	foreach($ping in $parallelTasks.Result) {
+		if ($ping.Status -ne "Success") { continue }
+		$success++
+		[int]$latency = $ping.RoundtripTime
+		$avg += $latency
+		if ($latency -lt $min) { $min = $latency }
+		if ($latency -gt $max) { $max = $latency }
+	}
+	[int]$loss = $total - $success
+	if ($success -ne 0) {
+		$avg /= $success
+		Write-Host "✅ Online with $($avg)ms latency average ($($min)ms...$($max)ms, $loss/$total ping loss)"
+	} else {
+		Write-Host "⚠️ Offline ($loss/$total ping loss)"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-power.ps1

@@ -0,0 +1,58 @@
+<#
+.SYNOPSIS
+	Checks the power status
+.DESCRIPTION
+	This PowerShell script queries the power status and prints it.
+.EXAMPLE
+	PS> ./check-power.ps1
+	⚠️ Battery at 9% · 54 min remaining · power scheme 'HP Optimized' 
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	if ($IsLinux) {
+		$reply = "✅ AC powered" # TODO, just guessing :-)
+	} else {
+		Add-Type -Assembly System.Windows.Forms
+		$details = [System.Windows.Forms.SystemInformation]::PowerStatus
+		[int]$percent = 100 * $details.BatteryLifePercent
+		[int]$remaining = $details.BatteryLifeRemaining / 60
+		if ($details.PowerLineStatus -eq "Online") {
+			if ($details.BatteryChargeStatus -eq "NoSystemBattery") {
+				$reply = "✅ AC powered"
+			} elseif ($percent -ge 95) {
+				$reply = "✅ Battery $percent% fully charged"
+			} else {
+				$reply = "✅ Battery charging... ($percent%)"
+			}
+		} else { # must be offline
+			if (($remaining -eq 0) -and ($percent -ge 60)) {
+				$reply = "✅ Battery $percent% full"
+			} elseif ($remaining -eq 0) {
+				$reply = "✅ Battery at $percent%"
+			} elseif ($remaining -le 5) {
+				$reply = "⚠️ Battery at $percent% · ONLY $($remaining)min remaining"
+			} elseif ($remaining -le 30) {
+				$reply = "⚠️ Battery at $percent% · only $($remaining)min remaining"
+			} elseif ($percent -lt 10) {
+				$reply = "⚠️ Battery at $percent% · $($remaining)min remaining"
+			} elseif ($percent -ge 60) {
+				$reply = "✅ Battery $percent% full · $($remaining)min remaining"
+			} else {
+				$reply = "✅ Battery at $percent% · $($remaining)min remaining"
+			}
+		}
+		$powerScheme = (powercfg /getactivescheme)
+		$powerScheme = $powerScheme -Replace "^(.*)  \(",""
+		$powerScheme = $powerScheme -Replace "\)$",""
+		$reply += " · power scheme '$powerScheme'"
+	}
+	Write-Output $reply
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-powershell.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Check the PowerShell status
+.DESCRIPTION
+	This PowerShell script queries the PowerShell status and prints it.
+.EXAMPLE
+	PS> ./check-powershell.ps1
+	✅ PowerShell 5.1.19041.2673 Desktop edition (10 modules, 1458 cmdlets, 172 aliases)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$version = $PSVersionTable.PSVersion
+	$edition = $PSVersionTable.PSEdition
+	$numModules = (Get-Module).Count
+	$numAliases = (Get-Alias).Count
+	if ($IsLinux) {
+		"✅ PowerShell $version $edition edition ($numModules modules, $numAliases aliases)"
+	} else {
+		$numCmdlets = (Get-Command -Command-Type cmdlet).Count
+		"✅ PowerShell $version $edition edition ($numModules modules, $numCmdlets cmdlets, $numAliases aliases)"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-ps1-file.ps1

@@ -0,0 +1,33 @@
+<#
+.SYNOPSIS
+	Checks PowerShell file(s) for validity
+.DESCRIPTION
+	This PowerShell script checks the given PowerShell script file(s) for validity.
+.PARAMETER filePattern
+	Specifies the file pattern to the PowerShell file(s)
+.EXAMPLE
+	PS> ./check-ps1-file *.ps1
+	✔️ Valid PowerShell in myfile.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$filePattern = "")
+
+try {
+	if ($filePattern -eq "" ) { $path = Read-Host "Enter the file pattern to the PowerShell file(s)" }
+
+	$files = Get-ChildItem -path "$filePattern" -attributes !Directory
+	foreach ($file in $files) {
+		$syntaxError = @()
+		[void][System.Management.Automation.Language.Parser]::ParseFile($file, [ref]$null, [ref]$syntaxError)
+		if ("$syntaxError" -ne "") { throw "$syntaxError" }
+		"✔️ Valid PowerShell in $($file.Name)"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-ram.ps1

@@ -0,0 +1,79 @@
+<#
+.SYNOPSIS
+	Checks the RAM
+.DESCRIPTION
+	This PowerShell script queries the status of the installed RAM memory modules and prints it.
+.EXAMPLE
+	PS> ./check-ram.ps1
+	✅ 16GB DDR4 RAM @ 3200MHz by Micron (in CPU0/CPU0-DIMM3 @ 1.2V)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function GetRAMType { param([int]$Type)
+	switch($Type) {
+	2 { return "DRAM" }
+	5 { return "EDO RAM" }
+	6 { return "EDRAM" }
+	7 { return "VRAM" }
+	8 { return "SRAM" }
+	10 { return "ROM" }
+	11 { return "Flash" }
+	12 { return "EEPROM" }
+	13 { return "FEPROM" }
+	14 { return "EPROM" }
+	15 { return "CDRAM" }
+	16 { return "3DRAM" }
+	17 { return "SDRAM" }
+	18 { return "SGRAM" }
+	19 { return "RDRAM" }
+	20 { return "DDR RAM" }
+	21 { return "DDR2 RAM" }
+	22 { return "DDR2 FB-DIMM" }
+	24 { return "DDR3 RAM" }
+	26 { return "DDR4 RAM" }
+	27 { return "DDR5 RAM" }
+	28 { return "DDR6 RAM" }
+	29 { return "DDR7 RAM" }
+	default { return "RAM" }
+	}
+}
+
+function Bytes2String { param([int64]$Bytes)
+        if ($Bytes -lt 1024) { return "$Bytes bytes" }
+        $Bytes /= 1024
+        if ($Bytes -lt 1024) { return "$($Bytes)KB" }
+        $Bytes /= 1024
+        if ($Bytes -lt 1024) { return "$($Bytes)MB" }
+        $Bytes /= 1024
+        if ($Bytes -lt 1024) { return "$($Bytes)GB" }
+        $Bytes /= 1024
+        if ($Bytes -lt 1024) { return "$($Bytes)TB" }
+        $Bytes /= 1024
+        if ($Bytes -lt 1024) { return "$($Bytes)PB" }
+        $Bytes /= 1024
+        if ($Bytes -lt 1024) { return "$($Bytes)EB" }
+}
+
+try {
+	if ($IsLinux) {
+		# TODO
+	} else {
+		$Banks = Get-WmiObject -Class Win32_PhysicalMemory
+		foreach ($Bank in $Banks) {
+			$Capacity = Bytes2String($Bank.Capacity)
+			$Type = GetRAMType $Bank.SMBIOSMemoryType
+			$Speed = $Bank.Speed
+			[float]$Voltage = $Bank.ConfiguredVoltage / 1000.0
+			$Manufacturer = $Bank.Manufacturer
+			$Location = "$($Bank.BankLabel)/$($Bank.DeviceLocator)"
+			Write-Host "✅ $Capacity $Type @ $($Speed)MHz by $Manufacturer (in $Location @ $($Voltage)V)"
+		}
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-repo.ps1

@@ -0,0 +1,78 @@
+<#
+.SYNOPSIS
+	Checks a repo
+.DESCRIPTION
+	This PowerShell script verifies the integrity of a local Git repository.
+.PARAMETER RepoDir
+	Specifies the path to the Git repository (current working directory by default)
+.EXAMPLE
+	PS> ./check-repo.ps1 C:\MyRepo
+	⏳ (1/10) Searching for Git executable...  git version 2.41.0.windows.3
+	⏳ (2/10) Checking local folder...         📂C:\MyRepo
+	⏳ (3/10) Querying remote URL...           git@github.com:fleschutz/PowerShell.git
+	⏳ (4/10) Querying current branch...       main
+	⏳ (5/10) Fetching remote updates...
+	⏳ (6/10) Querying latest tag...           v0.8 (commit 02171a401d83b01a0cda0af426840b605e617f08)
+	⏳ (7/10) Verifying data integrity...
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$RepoDir = "$PWD")
+
+try {
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	Write-Host "⏳ (1/10) Searching for Git executable...  " -noNewline
+	& git --version
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	Write-Host "⏳ (2/10) Checking local folder...         " -noNewline
+	$FullPath = Resolve-Path "$RepoDir"
+	if (!(Test-Path "$FullPath" -pathType Container)) { throw "Can't access folder: $FullPath" }
+	"📂$FullPath"
+
+	Write-Host "⏳ (3/10) Querying remote URL...           " -noNewline
+	& git -C "$FullPath" remote get-url origin
+	if ($lastExitCode -ne "0") { throw "'git remote get-url origin' failed with exit code $lastExitCode" }
+
+	Write-Host "⏳ (4/10) Querying current branch...       " -noNewline
+	& git -C "$FullPath" branch --show-current
+	if ($lastExitCode -ne "0") { throw "'git branch --show-current' failed with exit code $lastExitCode" }
+
+	Write-Host "⏳ (5/10) Fetching remote updates..."
+	& git -C "$FullPath" fetch
+	if ($lastExitCode -ne "0") { throw "'git fetch' failed with exit code $lastExitCode" }
+
+	Write-Host "⏳ (6/10) Querying latest tag...           " -noNewline
+        $LatestTagCommitID = (git -C "$FullPath" rev-list --tags --max-count=1)
+        $LatestTagName = (git -C "$FullPath" describe --tags $LatestTagCommitID)
+        Write-Host "$LatestTagName (commit $LatestTagCommitID)"
+
+	Write-Host "⏳ (7/10) Verifying data integrity..."
+	& git -C "$FullPath" fsck 
+	if ($lastExitCode -ne "0") { throw "'git fsck' failed with exit code $lastExitCode" }
+
+	Write-Host "⏳ (8/10) Running maintenance tasks..."
+	& git -C "$FullPath" maintenance run
+	if ($lastExitCode -ne "0") { throw "'git maintenance run' failed with exit code $lastExitCode" }
+
+	Write-Host "⏳ (9/10) Checking submodule status..."
+	& git -C "$FullPath" submodule status
+	if ($lastExitCode -ne "0") { throw "'git submodule status' failed with exit code $lastExitCode" }
+
+	Write-Host "⏳ (10/10) Checking repo status...         " -noNewline
+	& git -C "$FullPath" status 
+	if ($lastExitCode -ne "0") { throw "'git status --short' failed with exit code $lastExitCode" }
+
+	$RepoDirName = (Get-Item "$FullPath").Name
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ Checked repo 📂$RepoDirName in $Elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-santa.ps1

@@ -0,0 +1,23 @@
+<#
+.SYNOPSIS
+	Checks the time until Saint Nicholas Day
+.DESCRIPTION
+	This PowerShell script checks the time until Saint Nicholas Day and replies by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-santa
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$Now = [DateTime]::Now
+	$Diff = [Datetime]("12/06/" + $Now.Year) – $Now
+
+	& "$PSScriptRoot/speak-english.ps1" "Saint Nicholas Day is in $($Diff.Days) days."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-smart-devices.ps1

@@ -0,0 +1,76 @@
+<#
+.SYNOPSIS
+	Checks the SMART device status
+.DESCRIPTION
+	This PowerShell script queries the status of the SSD/HDD devices (supporting S.M.A.R.T.) and prints it.
+.EXAMPLE
+	PS> ./check-smart-devices.ps1
+	✅ 1TB Samsung SSD 970 EVO via NVMe (2388 hours, 289x on, v2B2QEXE7, 37°C, selftest passed)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function Bytes2String { param([int64]$Bytes)
+	if ($Bytes -lt 1000) { return "$Bytes bytes" }
+	$Bytes /= 1000
+	if ($Bytes -lt 1000) { return "$($Bytes)KB" }
+	$Bytes /= 1000
+	if ($Bytes -lt 1000) { return "$($Bytes)MB" }
+	$Bytes /= 1000
+	if ($Bytes -lt 1000) { return "$($Bytes)GB" }
+	$Bytes /= 1000
+	if ($Bytes -lt 1000) { return "$($Bytes)TB" }
+	$Bytes /= 1000
+	if ($Bytes -lt 1000) { return "$($Bytes)PB" }
+	$Bytes /= 1000
+	if ($Bytes -lt 1000) { return "$($Bytes)EB" }
+}
+
+try {
+	Write-Progress "(1/3) Searching for smartmontools..."
+	$Result = (smartctl --version)
+	if ($lastExitCode -ne "0") { throw "Can't execute 'smartctl' - make sure smartmontools are installed" }
+
+	Write-Progress "(2/3) Scanning S.M.A.R.T devices..."
+	if ($IsLinux) {
+		$Devices = $(sudo smartctl --scan-open)
+	} else {
+		$Devices = $(smartctl --scan-open)
+	}
+
+	foreach($Device in $Devices) {
+		Write-Progress "(3/3) Querying S.M.A.R.T devices..."
+		$Array = $Device.split(" ")
+		$Device = $Array[0]
+		if ("$Device" -eq "#") {
+			continue
+		} elseif ($IsLinux) {
+			$Details = (sudo smartctl --all --json $Device) | ConvertFrom-Json
+			$null = (sudo smartctl --test=short $Device)
+		} else {
+			$Details = (smartctl --all --json $Device) | ConvertFrom-Json
+			$null = (smartctl --test=short $Device)
+		}
+		$ModelName = $Details.model_name
+		$Protocol = $Details.device.protocol
+		[int64]$GBytes = $Details.user_capacity.bytes
+		if ($GBytes -gt 0) {
+			$Capacity = "$(Bytes2String $GBytes) "
+		} else {
+			$Capacity = ""
+		}
+		$Temp = $Details.temperature.current
+		$Firmware = $Details.firmware_version
+		$PowerOn = $Details.power_cycle_count
+		$Hours = $Details.power_on_time.hours
+		if ($Details.smart_status.passed) { $Status = "passed" } else { $Status = "FAILED" }
+		Write-Progress -completed " "
+		Write-Host "✅ $($Capacity)$ModelName via $Protocol ($Hours hours, $($PowerOn)x on, v$($Firmware), $($Temp)°C, selftest $Status)"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-software.ps1

@@ -0,0 +1,29 @@
+<#
+.SYNOPSIS
+	Checks the software
+.DESCRIPTION
+	This PowerShell script queries the software status of the local computer and prints it.
+.EXAMPLE
+	PS> ./check-software.ps1
+
+	S O F T W A R E
+	✅ BIOS model 'P62 v02.67' version HPQOEM - 0 by HP
+	✅ Windows 10 Pro 64-Bit (v10.0.19045, since 5/2/2021)
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+" "
+& "$PSScriptRoot/write-green.ps1" "   S O F T W A R E"
+& "$PSScriptRoot/check-bios.ps1"
+& "$PSScriptRoot/check-os.ps1"
+& "$PSScriptRoot/check-uptime.ps1"
+& "$PSScriptRoot/check-apps.ps1"
+& "$PSScriptRoot/check-powershell.ps1"
+& "$PSScriptRoot/check-time-zone.ps1"
+& "$PSScriptRoot/check-swap-space.ps1"
+& "$PSScriptRoot/check-pending-reboot.ps1"
+exit 0 # success

scripts/check-subnet-mask.ps1

@@ -0,0 +1,41 @@
+<#
+.SYNOPSIS
+	Checks the given subnet mask for validity
+.DESCRIPTION
+	This PowerShell script checks the given subnet mask for validity.
+.PARAMETER address
+	Specifies the subnet mask to check
+.EXAMPLE
+	PS> ./check-subnet-mask.ps1 255.255.255.0
+	✔️ subnet mask 255.255.255.0 is valid
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$address = "")
+
+function IsSubNetMaskValid { param([string]$IP)
+	$RegEx = "^(254|252|248|240|224|192|128).0.0.0$|^255.(254|252|248|240|224|192|128|0).0.0$|^255.255.(254|252|248|240|224|192|128|0).0$|^255.255.255.(255|254|252|248|240|224|192|128|0)$"
+	if ($IP -match $RegEx) {
+		return $true
+	} else {
+		return $false
+	}
+}
+
+try {
+	if ($address -eq "" ) { $address = read-host "Enter subnet mask to validate" }
+
+	if (IsSubNetMaskValid $address) {
+		"✔️ subnet mask $Address is valid"
+		exit 0 # success
+	} else {
+		write-warning "Invalid subnet mask: $address"
+		exit 1
+	}
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-swap-space.ps1

@@ -0,0 +1,62 @@
+<#
+.SYNOPSIS
+	Checks the swap space
+.DESCRIPTION
+	This PowerShell script queries the current status of the swap space and prints it.
+.PARAMETER minLevel
+	Specifies the minimum level in GB (10 GB by default)
+.EXAMPLE
+	PS> ./check-swap-space.ps1
+	✅ Swap space uses 42%, 748MB free of 1GB
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([int]$minLevel = 10)
+
+function MB2String { param([int64]$Bytes)
+        if ($Bytes -lt 1000) { return "$($Bytes)MB" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)GB" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)TB" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)PB" }
+        $Bytes /= 1000
+        if ($Bytes -lt 1000) { return "$($Bytes)EB" }
+}
+
+try {
+	[int64]$Total = [int64]$Used = [int64]$Free = 0
+	if ($IsLinux) {
+		$Result = $(free --mega | grep Swap:)
+		[int64]$Total = $Result.subString(5,14)
+		[int64]$Used = $Result.substring(20,13)
+		[int64]$Free = $Result.substring(32,11)
+	} else {
+		$Items = Get-WmiObject -class "Win32_PageFileUsage" -namespace "root\CIMV2" -computername localhost 
+		foreach ($Item in $Items) { 
+			$Total += $Item.AllocatedBaseSize
+			$Used += $Item.CurrentUsage
+			$Free += ($Total - $Used)
+		} 
+	}
+	if ($Total -eq 0) {
+        	Write-Output "⚠️ No swap space configured"
+	} elseif ($Free -eq 0) {
+		Write-Output "⚠️ Swap space of $(MB2String $Total) is full"
+	} elseif ($Free -lt $minLevel) {
+		Write-Output "⚠️ Swap space of $(MB2String $Total) is nearly full, only $(MB2String $Free) free"
+	} elseif ($Used -eq 0) {
+		Write-Output "✅ Swap space of $(MB2String $Total) reserved"
+	} else {
+		[int]$Percent = ($Used * 100) / $Total
+		Write-Output "✅ Swap space uses $Percent%, $(MB2String $Free) free of $(MB2String $Total)"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-symlinks.ps1

@@ -0,0 +1,55 @@
+<#
+.SYNOPSIS
+	Checks symlinks in a folder
+.DESCRIPTION
+	This PowerShell script checks every symbolic link in a folder (including subfolders).
+	It returns the number of broken symlinks as exit value.
+.PARAMETER folder
+	Specifies the path to the folder
+.EXAMPLE
+	PS> ./check-symlinks C:\Users
+	⏳ Checking symlinks at 📂C:\Users including subfolders...
+	✔️ Found 0 broken symlinks at 📂C:\Users in 60 sec
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$Folder = "")
+
+try {
+	if ($Folder -eq "" ) { $Folder = read-host "Enter the path to the folder" }
+
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+	$FullPath = Resolve-Path "$Folder"
+	"⏳ Checking symlinks at 📂$FullPath including subfolders..."
+
+	[int]$NumTotal = [int]$NumBroken = 0
+	Get-ChildItem $FullPath -recurse  | Where { $_.Attributes -match "ReparsePoint" } | ForEach-Object {
+		$Symlink = $_.FullName
+		$Target = ($_ | Select-Object -ExpandProperty Target -ErrorAction Ignore)
+		if ($Target) {
+			$path = $_.FullName + "\..\" + ($_ | Select-Object -ExpandProperty Target)
+			$item = Get-Item $path -ErrorAction Ignore
+			if (!$item) {
+				$NumBroken++
+				"Symlink $Symlink to: $Target seems broken (#$NumBroken)"
+			}
+		}
+		$NumTotal++
+	}
+
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	if ($NumTotal -eq 0) {
+		"✔️ No symlink found at 📂$FullPath in $Elapsed sec" 
+	} elseif ($NumBroken -eq 1) {
+		"✔️ Found $NumBroken broken symlink at 📂$FullPath in $Elapsed sec"
+	} else {
+		"✔️ Found $NumBroken broken symlinks at 📂$FullPath in $Elapsed sec"
+	}
+	exit $NumBroken
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-time-zone.ps1

@@ -0,0 +1,31 @@
+<#
+.SYNOPSIS
+	Checks the time zone
+.DESCRIPTION
+	This PowerShell script queries the time zone and prints it.
+.EXAMPLE
+	PS> ./check-time-zone.ps1
+	✅ 11:13 AM W. Europe Summer Time (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna (+01:00 DST)
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	[system.threading.thread]::currentThread.currentCulture = [system.globalization.cultureInfo]"en-US"
+	$Time = $((Get-Date).ToShortTimeString())
+	$TZ = (Get-Timezone)
+	if ($TZ.SupportsDaylightSavingTime) {
+		$TZName = $TZ.DaylightName
+		$DST=" (+01:00 DST)"
+	} else {
+		$TZName = $TZ.StandardName
+		$DST=""
+	}
+	Write-Host "✅ $Time $TZName $($TZ.DisplayName)$($DST)"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-uptime.ps1

@@ -0,0 +1,42 @@
+<#
+.SYNOPSIS
+	Checks the uptime 
+.DESCRIPTION
+	This PowerShell script queries the computer's uptime (time between now and last boot up time) and prints it.
+.EXAMPLE
+	PS> ./check-uptime.ps1
+	✅ Up for 2 days, 20 hours, 10 minutes
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+function TimeSpan2String([TimeSpan]$uptime)
+{
+	[int]$days = $uptime.Days
+	[int]$hours = $days * 24 + $uptime.Hours
+	if ($days -gt 2) {
+		return "$days days"
+	} elseif ($hours -gt 1) {
+		return "$hours hours"
+	} else {
+		return "$($uptime.Minutes)min"
+	}
+}
+
+try {
+	if ($IsLinux) {
+		$uptime = (Get-Uptime)
+		Write-Host "✅ Up for $(TimeSpan2String $uptime)"
+	} else {
+		[system.threading.thread]::currentthread.currentculture = [system.globalization.cultureinfo]"en-US"
+		$lastBootTime = (Get-CimInstance Win32_OperatingSystem).LastBootUpTime 
+		$uptime = New-TimeSpan -Start $lastBootTime -End (Get-Date)
+		Write-Host "✅ Up for $(TimeSpan2String $uptime) since $($lastBootTime.ToShortDateString())"
+	}
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-vpn.ps1

@@ -0,0 +1,31 @@
+<#
+.SYNOPSIS
+	Checks the VPN status
+.DESCRIPTION
+	This PowerShell script queries the status of the VPN connection(s) and prints it.
+.EXAMPLE
+	PS> ./check-vpn.ps1
+	✅ VPN to NASA L2TP is connected
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$noVPN = $true
+	if ($IsLinux) {
+		# TODO
+	} else {
+		$Connections = Get-VPNConnection
+		foreach($Connection in $Connections) {
+			Write-Host "✅ VPN to $($Connection.Name) is $($Connection.ConnectionStatus.ToLower())"
+			$noVPN = $false
+		}
+	}
+	if ($noVPN) { Write-Host "⚠️ No VPN configured" }
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-weather.ps1

@@ -0,0 +1,39 @@
+<#
+.SYNOPSIS
+	Checks the weather 
+.DESCRIPTION
+	This PowerShell script checks the current weather report.
+.PARAMETER location
+	Specifies the location to use (determined automatically per default)
+.EXAMPLE
+	PS> ./check-weather.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$location = "") # empty means determine automatically
+
+try {
+	$Weather = (Invoke-WebRequest http://wttr.in/${location}?format=j1 -userAgent "curl" -useBasicParsing).Content | ConvertFrom-Json
+
+	$Temp = $Weather.current_condition.temp_C
+	$Precip = $Weather.current_condition.precipMM
+	$Humidity = $Weather.current_condition.humidity
+	$Pressure = $Weather.current_condition.pressure
+	$WindSpeed = $Weather.current_condition.windspeedKmph
+	$WindDir = $Weather.current_condition.winddir16Point
+	$UV = $Weather.current_condition.uvIndex
+	$Visib = $Weather.current_condition.visibility
+	$Clouds = $Weather.current_condition.cloudcover
+	$Desc = $Weather.current_condition.weatherDesc.value
+	$Area = $Weather.nearest_area.areaName.value
+	$Region = $Weather.nearest_area.region.value
+
+	& "$PSScriptRoot/speak-english.ps1" "$($Temp)°C, $($Precip)mm rain, $($Humidity)% humidity, $($WindSpeed)km/h wind from $WindDir with $($Clouds)% clouds and $($Visib)km visibility at $Area ($Region)."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-week.ps1

@@ -0,0 +1,21 @@
+<#
+.SYNOPSIS
+	Determines the week number 
+.DESCRIPTION
+	This PowerShell script determines and speaks the current week number by text-to-speech (TTS).
+.EXAMPLE
+	PS> ./check-week.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$WeekNo = (Get-Date -UFormat %V)
+	& "$PSScriptRoot/speak-english.ps1" "It's week #$WeekNo."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-wind.ps1

@@ -0,0 +1,30 @@
+<#
+.SYNOPSIS
+	Checks the wind conditions
+.DESCRIPTION
+	This PowerShell script determines the current wind conditions and replies by text-to-speech (TTS).
+.PARAMETER location
+	Specifies the location to use (determined automatically per default)
+.EXAMPLE
+	PS> ./check-wind.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$location = "") # empty means determine automatically
+
+try {
+	$Weather = (Invoke-WebRequest http://wttr.in/${location}?format=j1 -userAgent "curl" -useBasicParsing).Content | ConvertFrom-Json
+	$WindSpeed = $Weather.current_condition.windspeedKmph
+	$WindDir = $Weather.current_condition.winddir16Point
+	$Area = $Weather.nearest_area.areaName.value
+	$Region = $Weather.nearest_area.region.value
+
+	& "$PSScriptRoot/speak-english.ps1" "$($WindSpeed)km/h wind from $WindDir at $Area ($Region)."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-windows-system-files.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Checks the validity of the Windows system files (requires admin rights)
+.DESCRIPTION
+	This PowerShell script checks the validity of the Windows system files. It requires admin rights.
+.EXAMPLE
+	PS> ./check-windows-system-files.ps1
+	✔️ checked Windows system files
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+#Requires -RunAsAdministrator
+
+try {
+	sfc /verifyOnly
+	if ($lastExitCode -ne "0") { throw "'sfc /verifyOnly' failed" }
+
+	"✔️ checked Windows system files"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/check-xml-file.ps1

@@ -0,0 +1,45 @@
+<#
+.SYNOPSIS
+	Checks the given XML file for validity
+.DESCRIPTION
+	This PowerShell script checks the given XML file for validity.
+.PARAMETER file
+	Specifies the path to the XML file to check
+.EXAMPLE
+	PS> ./check-xml-file myfile.xml
+	✔️ XML file is valid
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$file = "")
+
+try {
+	if ($file -eq "" ) { $file = read-host "Enter path to XML file" }
+
+	$XmlFile = Get-Item $file
+	
+	$script:ErrorCount = 0
+	
+	# Perform the XSD Validation
+	$ReaderSettings = New-Object -TypeName System.Xml.XmlReaderSettings
+	$ReaderSettings.ValidationType = [System.Xml.ValidationType]::Schema
+	$ReaderSettings.ValidationFlags = [System.Xml.Schema.XmlSchemaValidationFlags]::ProcessInlineSchema -bor [System.Xml.Schema.XmlSchemaValidationFlags]::ProcessSchemaLocation
+	$ReaderSettings.add_ValidationEventHandler({ $script:ErrorCount++ })
+	$Reader = [System.Xml.XmlReader]::Create($XmlFile.FullName, $ReaderSettings)
+	while ($Reader.Read()) { }
+	$Reader.Close()
+	
+	if ($script:ErrorCount -gt 0) {
+		write-warning "Invalid XML file"
+		exit 1
+	} 
+
+	"✔️ XML file is valid"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/clean-repo.ps1

@@ -0,0 +1,53 @@
+<#
+.SYNOPSIS
+	Cleans a repo
+.DESCRIPTION
+	This PowerShell script deletes all untracked files and folders in a local Git repository (including submodules).
+	NOTE: To be used with care! This cannot be undone!
+.PARAMETER RepoDir
+	Specifies the file path to the local Git repository
+.EXAMPLE
+	PS> ./clean-repo.ps1 C:\rust
+	⏳ (1/4) Searching for Git executable...          git version 2.41.0.windows.3
+	⏳ (2/4) Checking local repository...        	  📂C:\rust
+	⏳ (3/4) Removing untracked files in repository...
+	⏳ (4/4) Removing untracked files in submodules...
+	✔️ Cleaned repo 📂rust in 1 sec
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$RepoDir = "$PWD")
+
+try {
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	Write-Host "⏳ (1/4) Searching for Git executable...          " -noNewline
+	& git --version
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	"⏳ (2/4) Checking local repository...             📂$RepoDir"
+	if (-not(Test-Path "$RepoDir" -pathType container)) { throw "Can't access folder '$RepoDir' - maybe a typo or missing folder permissions?" }
+	$RepoDirName = (Get-Item "$RepoDir").Name
+
+	"⏳ (3/4) Removing untracked files in repository..."
+	& git -C "$RepoDir" clean -xfd -f # to delete all untracked files in the main repo
+	if ($lastExitCode -ne "0") {
+		Write-Warning "'git clean' failed with exit code $lastExitCode, retrying once..."
+		& git -C "$RepoDir" clean -xfd -f 
+		if ($lastExitCode -ne "0") { throw "'git clean' failed with exit code $lastExitCode" }
+	}
+
+	"⏳ (4/4) Removing untracked files in submodules..."
+	& git -C "$RepoDir" submodule foreach --recursive git clean -xfd -f # to delete all untracked files in the submodules
+	if ($lastExitCode -ne "0") { throw "'git clean' in the submodules failed with exit code $lastExitCode" }
+
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ Cleaned repo 📂$RepoDirName in $Elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/clean-repos.ps1

@@ -0,0 +1,54 @@
+<#
+.SYNOPSIS
+	Cleans all Git repositories in a folder from untracked files 
+.DESCRIPTION
+	This PowerShell script cleans all Git repositories in a folder from untracked files (including submodules).
+.PARAMETER parentDir
+	Specifies the path to the parent folder (current working dir by default)
+.EXAMPLE
+	PS> ./clean-repos.ps1 C:\MyRepos
+	⏳ (1) Searching for Git executable...    git version 2.40.1
+	⏳ (2) Checking parent folder 📂Repos...  28 subfolders found
+	⏳ (3/30) Cleaning 📂base256unicode...
+	...
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$parentDir = "$PWD")
+
+try {
+	$stopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	Write-Host "⏳ (1) Searching for Git executable...    " -noNewline
+        & git --version
+        if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+        $parentDirName = (Get-Item "$ParentDir").Name
+        Write-Host "⏳ (2) Checking parent folder 📂$parentDirName...  " -noNewline
+        if (-not(Test-Path "$ParentDir" -pathType container)) { throw "Can't access folder: $ParentDir" }
+        $folders = (Get-ChildItem "$ParentDir" -attributes Directory)
+        $numFolders = $folders.Count
+        Write-Host "$numFolders subfolders found"
+
+	[int]$Step = 2
+	foreach ($folder in $folders) {
+		$FolderName = (Get-Item "$folder").Name
+		$Step++
+		"⏳ ($Step/$($numFolders + 2)) Cleaning 📂$FolderName..."
+
+		& git -C "$folder" clean -xfd -f # force + recurse into dirs + don't use the standard ignore rules
+		if ($lastExitCode -ne "0") { throw "'git clean -xfd -f' failed with exit code $lastExitCode" }
+
+		& git -C "$folder" submodule foreach --recursive git clean -xfd -f 
+		if ($lastExitCode -ne "0") { throw "'git clean -xfd -f' in submodules failed with exit code $lastExitCode" }
+	}
+	[int]$elapsed = $stopWatch.Elapsed.TotalSeconds
+	"✔️ Cleaned $numFolders Git repos under 📂$parentDirName in $elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/clear-dns-cache.ps1

@@ -0,0 +1,26 @@
+<#
+.SYNOPSIS
+	Clears the DNS cache
+.DESCRIPTION
+	This PowerShell script clears the DNS client cache of the local computer.
+.EXAMPLE
+	PS> ./clear-dns-cache.ps1
+	✔️ Cleared DNS cache in 1 sec
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	$StopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	Clear-DnsClientCache
+
+	[int]$Elapsed = $StopWatch.Elapsed.TotalSeconds
+	"✔️ Cleared DNS cache in $Elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/clear-recycle-bin.ps1

@@ -0,0 +1,24 @@
+<#
+.SYNOPSIS
+	Clears the recycle bin folder
+.DESCRIPTION
+	This PowerShell script removes the content of the recycle bin folder permanently.
+	IMPORTANT NOTE: this cannot be undo!
+.EXAMPLE
+	PS> ./clear-recycle-bin
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+try {
+	Clear-RecycleBin -Confirm:$false
+	if ($lastExitCode -ne "0") { throw "'Clear-RecycleBin' failed" }
+
+	& "$PSScriptRoot/speak-english.ps1" "It's clean now."
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/clone-repos.ps1

@@ -0,0 +1,69 @@
+<#
+.SYNOPSIS
+	Clones Git repos
+.DESCRIPTION
+	This PowerShell script clones popular Git repositories into a common target directory.
+.PARAMETER targetDir
+	Specifies the file path to the target directory (current working directory by default)
+.EXAMPLE
+	PS> ./clone-repos C:\Repos
+	...
+	✔️ Cloned 29 of 29 Git repos into 📂C:\Repos in 123 sec
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+param([string]$targetDir = "$PWD")
+
+try {
+	$stopWatch = [system.diagnostics.stopwatch]::startNew()
+
+	Write-Host "⏳ (1) Searching for Git executable...          " -noNewline
+	& git --version
+	if ($lastExitCode -ne "0") { throw "Can't execute 'git' - make sure Git is installed and available" }
+
+	Write-Host "⏳ (2) Reading Data/popular-repositories.csv... " -noNewline
+	$table = Import-CSV "$PSScriptRoot/../data/popular-repositories.csv"
+	$total = $table.count
+	Write-Host "$total repos"
+
+	$targetDirName = (Get-Item "$targetDir").Name
+	Write-Host "⏳ (3) Checking target folder...                📂$targetDirName"
+	if (-not(Test-Path "$targetDir" -pathType container)) { throw "Can't access directory: $targetDir" }
+	
+	[int]$step = 3
+	[int]$cloned = 0
+	[int]$skipped = 0
+	foreach($row in $table) {
+		[string]$folderName = $row.FOLDERNAME
+		[string]$category = $row.CATEGORY
+		[string]$URL = $row.URL
+		[string]$branch = $row.BRANCH
+		[string]$shallow = $row.SHALLOW
+		$step++
+
+		if (Test-Path "$targetDir/$folderName" -pathType container) {
+			"⏳ ($step/$($total + 4)) Skipping existing 📂$folderName ($category)..."
+			$skipped++
+			continue
+		}
+		if ($shallow -eq "yes") {
+			"⏳ ($step/$($total + 4)) Cloning into 📂$folderName (a $category, $branch branch, shallow)..."
+			& git clone --branch "$branch" --single-branch --recurse-submodules "$URL" "$targetDir/$folderName"
+			if ($lastExitCode -ne "0") { throw "'git clone --branch $branch $URL' failed with exit code $lastExitCode" }
+		} else {
+			"⏳ ($step/$($total + 4)) Cloning into 📂$folderName (a $category, $branch branch, full history)..."
+			& git clone --branch "$branch" --recurse-submodules "$URL" "$targetDir/$folderName"
+			if ($lastExitCode -ne "0") { throw "'git clone --branch $branch $URL' failed with exit code $lastExitCode" }
+		}
+		$cloned++
+	}
+	[int]$elapsed = $stopWatch.Elapsed.TotalSeconds
+	"✔️ Cloned $cloned of $total Git repos into 📂$targetDirName in $Elapsed sec"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/close-calculator.ps1

@@ -0,0 +1,15 @@
+<#
+.SYNOPSIS
+	Closes the calculator application
+.DESCRIPTION
+	This PowerShell script closes the calculator application gracefully.
+.EXAMPLE
+	PS> ./close-calculator
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+Stop-Process -name "CalculatorApp"
+exit 0 # success

scripts/close-chrome.ps1

@@ -0,0 +1,15 @@
+<#
+.SYNOPSIS
+	Closes the Chrome browser
+.DESCRIPTION
+	This PowerShell script closes the Google Chrome Web browser gracefully.
+.EXAMPLE
+	PS> ./close-chrome
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+& "$PSScriptRoot/close-program.ps1" "Google Chrome" "chrome" "chrome"
+exit 0 # success

scripts/close-cortana.ps1

@@ -0,0 +1,15 @@
+<#
+.SYNOPSIS
+	Closes Microsoft's Cortana application
+.DESCRIPTION
+	This PowerShell script closes Microsoft's Cortana application gracefully.
+.EXAMPLE
+	PS> ./close-cortana
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+& "$PSScriptRoot/close-program.ps1" "Cortana" "Cortana" "Cortana"
+exit 0 # success

scripts/close-edge.ps1

@@ -0,0 +1,19 @@
+<#
+.SYNOPSIS
+	Closes the Edge browser
+.DESCRIPTION
+	This PowerShell script closes the Microsoft Edge Web browser gracefully.
+.EXAMPLE
+	PS> ./close-edge
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+TaskKill /im msedge.exe /f /t
+if ($lastExitCode -ne "0") {
+	& "$PSScriptRoot/speak-english.ps1" "Sorry, Microsoft Edge isn't running."
+	exit 1
+}
+exit 0 # success

scripts/close-file-explorer.ps1

@@ -0,0 +1,15 @@
+<#
+.SYNOPSIS
+	Closes the File Explorer 
+.DESCRIPTION
+	This PowerShell script closes the Microsoft File Explorer application gracefully.
+.EXAMPLE
+	PS> ./close-file-explorer
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+(New-Object -ComObject Shell.Application).Windows() | %{$_.quit()}
+exit 0 # success

scripts/close-firefox.ps1

@@ -0,0 +1,15 @@
+<#
+.SYNOPSIS
+	Closes the Firefox browser 
+.DESCRIPTION
+	This PowerShell script closes the Mozilla Firefox Web browser gracefully.
+.EXAMPLE
+	PS> ./close-firefox
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+& "$PSScriptRoot/close-program.ps1" "Mozilla Firefox" "firefox" "firefox"
+exit 0 # success

scripts/close-git-extensions.ps1

@@ -0,0 +1,19 @@
+<#
+.SYNOPSIS
+	Closes the Git Extensions app
+.DESCRIPTION
+	This PowerShell script closes the Git Extensions application gracefully.
+.EXAMPLE
+	PS> ./close-git-extensions.ps1
+.LINK
+	https://github.com/fleschutz/PowerShell
+.NOTES
+	Author: Markus Fleschutz | License: CC0
+#>
+
+TaskKill /im GitExtensions.exe
+if ($lastExitCode -ne "0") {
+	& "$PSScriptRoot/speak-english.ps1" "Sorry, Git Extensions isn't running."
+	exit 1
+}
+exit 0 # success