Added try and catch

Scripts/MD5.ps1

@@ -7,6 +7,10 @@
 # License:	CC0
  
 param([string]$File)
+
+try {
 	$Result = get-filehash $File -algorithm MD5
 	write-host $Result.Hash
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/SHA1.ps1

@@ -7,6 +7,10 @@
 # License:	CC0
  
 param([string]$File)
+
+try {
 	$Result = get-filehash $File -algorithm SHA1
 	write-host $Result.Hash
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/SHA256.ps1

@@ -7,6 +7,10 @@
 # License:	CC0
 
 param([string]$File)
+
+try {
 	$Result = get-filehash $File -algorithm SHA256
 	write-host $Result.Hash
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/download.ps1

@@ -7,5 +7,10 @@
 # License:	CC0
 
 param([string]$URL)
+
+
+try {
 	wget --mirror --convert-links --adjust-extension --page-requisites --no-parent $URL --directory-prefix . --no-verbose
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/email.ps1

@@ -6,6 +6,7 @@
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
 
+try {
 	$smtpServer = "smtp.example.com"
 	$msg = new-object Net.Mail.MailMessage
 	$smtp = new-object Net.Mail.SmtpClient($smtpServer)
@@ -15,3 +16,5 @@ $msg.To.Add("you@example.com")
 	$msg.subject = "Test Mail"
 	$msg.body = "This is a test mail."
 	$smtp.Send($msg)
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/exe_info.ps1

@@ -7,5 +7,10 @@
 # License:	CC0
  
 param([string]$File)
+
+
+try {
 	get-childitem $File | % {$_.VersionInfo} | Select *
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/init_git.ps1

@@ -10,8 +10,11 @@ $UserName   = read-host "Your full name: "
 $UserEmail  = read-host "Your email address: "
 $UserEditor = read-host "Your favorite editor (nano, vi, emacs): "
 
+try {
 	git config --global user.name $UserName
 	git config --global user.email $UserEmail
 	git config --global core.editor $UserEditor
-echo "Done."
+	echo "Done. Git has been initialized."
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/lscmdlets.ps1

@@ -6,5 +6,8 @@
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
 
+try {
 	Get-Command -Command-Type cmdlet
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/lsmods.ps1

@@ -6,5 +6,8 @@
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
 
+try {
 	Get-Module
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/lsproc.ps1

@@ -6,5 +6,8 @@
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
 
+try {
 	Get-Process | Format-Table -Property Id, @{Label="CPU(s)";Expression={$_.CPU.ToString("N")+"%"};Alignment="Right"}, ProcessName -AutoSize
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/make-install.ps1

@@ -10,6 +10,7 @@ set "DST_DIR=C:\Program Files\MyApp\bin"
 set FILTER=*.exe *.dll
 set OPTIONS=/E /njh /np
 
+try {
 	title Syncing to %DST_DIR% ...
 	robocopy %SRC_DIR% %DST_DIR% %FILTER% %OPTIONS%
 
@@ -18,4 +19,6 @@ echo.
 	echo DONE - synced to %DST_DIR%
 	echo.
 	pause
-exit /b 0
+	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/moon.ps1

@@ -6,5 +6,8 @@
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
  
+try {
 	(Invoke-WebRequest http://wttr.in/Moon -UserAgent "curl" ).Content
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/news.ps1

@@ -10,6 +10,7 @@
 $RSS_URL = "https://yahoo.com/news/rss/world"
 # $RSS_URL = "https://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml"
 
+try {
 	[xml]$FileContent = (Invoke-WebRequest -Uri $RSS_URL).Content
 
 	write-host ""
@@ -20,3 +21,5 @@ foreach ($item in $FileContent.rss.channel.item) {
 		write-host "* "$item.title
 	}
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/password.ps1

@@ -19,6 +19,9 @@ function new_password() {
 	return $password
 }
 
+try {
 	$password = new_password
 	write-output $password
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/passwords.ps1

@@ -20,8 +20,11 @@ function new_password() {
 	return $password
 }
 
+try {
 	for ($j = 0; $j -lt $NumPasswords; $j++) {
 		$password = new_password
 		write-output $password
 	}
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/poweroff.ps1

@@ -7,5 +7,8 @@
 # License:	CC0
 
 #Requires -RunAsAdministrator
+try {
 	Stop-Computer
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/reboot.ps1

@@ -7,5 +7,8 @@
 # License:	CC0
 
 #Requires -RunAsAdministrator
+try {
 	Restart-Computer
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/speak.ps1

@@ -1,12 +1,19 @@
 #!/snap/bin/powershell
 #
-# Syntax:	./speak.ps1
+# Syntax:	./speak.ps1 [<text>]
 # Description:	speaks the given text
 # Author:	Markus Fleschutz
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
 
+param([string]$Text)
+if ($Text -eq "") {
 	$Text = "Hello World!"
+}
+
+try {
 	$voice = New-Object ComObject SAPI.SPVoice
 	$voice.Speak($Text);
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/test.ps1

@@ -6,6 +6,9 @@
 # Source:	github.com/fleschutz/PowerShell
 # License:	CC0
  
+try {
 	write-output "✔️ PowerShell works. Details are:"
 	echo $PSVersionTable
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/train_dns_cache.ps1

@@ -8,6 +8,7 @@
  
 $Table = import-csv domain_table.csv
 
+try {
 	$StartTime = Get-Date
 	foreach($Row in $Table) {
 		$Domain = $Row.Domain
@@ -20,3 +21,5 @@ $StopTime = Get-Date
 	$TimeInterval = New-Timespan -start $StartTime -end $StopTime
 	write-host "✔️ DNS cache trained with $Count domain names in $TimeInterval sec."
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/translate.ps1

@@ -31,8 +31,11 @@ function TranslateWithGoogle {
 	return $result[0][0][0]
 }
 
+try {
 	foreach($TargetLang in $TargetLanguages) {
 		$Result = TranslateWithGoogle $SourceText $SourceLang $TargetLang
 		write-output $TargetLang" : "$Result
 	}
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/txt2wav.ps1

@@ -12,6 +12,7 @@ $Speed = -1 # -10 is slowest, 10 is fastest
 $TargetWavFile = "spoken.wav"
 
 # Run:
+try {
 	Add-Type -AssemblyName System.Speech
 	$SpeechSynthesizer = New-Object System.Speech.Synthesis.SpeechSynthesizer
 	# $SpeechSynthesizer.SelectVoice("Microsoft Eva Mobile")
@@ -20,3 +21,5 @@ $SpeechSynthesizer.SetOutputToWaveFile($TargetWavFile)
 	$SpeechSynthesizer.Speak($Text)
 	$SpeechSynthesizer.Dispose()
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/wakeup.ps1

@@ -42,6 +42,7 @@ $UDPclient.Connect($broadcast,$port)
 $Hostname = read-host "Enter hostname: "
 $MyMACAddresses = "io=11:22:33:44:55:66","pi=11:22:33:44:55:66"
 
+try {
 	foreach($item in $MyMACAddresses) {
 		$array = $item.Split("=")
 		$thisHost=$array[0]
@@ -56,3 +57,5 @@ foreach($item in $MyMACAddresses) {
 	echo "Sorry, hostname $Hostname is unknown."
 	pause
 	exit 1
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/weather.ps1

@@ -7,5 +7,9 @@
 # License:	CC0
  
 $GeoLocation="" # empty means determine automatically
+
+try {
 	(Invoke-WebRequest http://wttr.in/$GeoLocation -UserAgent "curl" ).Content
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1

Scripts/zipdir.ps1

@@ -7,5 +7,10 @@
 # License:	CC0
 
 param([string]$Path)
+
+
+try {
 	Compress-Archive -Path $Path -DestinationPath $Path.zip
 	exit 0
+} catch { Write-Error $Error[0] }
+exit 1