Added write-centered.ps1

scripts/write-centered.ps1

@@ -0,0 +1,33 @@
+<#
+.SYNOPSIS
+	Writes text centered
+.DESCRIPTION
+	This PowerShell script writes the given text centered to the console.
+.PARAMETER text
+	Specifies the text to write
+.EXAMPLE
+	PS> ./write-headline.ps1 "Hello World"
+							Hello World
+.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 write" }
+
+	$ui = (Get-Host).ui
+	$rui = $ui.rawui 
+	[int]$numSpaces = ($rui.MaxWindowSize.Width - $text.Length) / 2
+
+	[string]$spaces = ""
+	for ([int]$i = 0; $i -lt $numSpaces; $i++) { $spaces += " " }
+	Write-Host "$spaces$text"
+	exit 0 # success
+} catch {
+	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}

scripts/write-headline.ps1

@@ -1,10 +1,10 @@
 <#
 .SYNOPSIS
-	Writes text as headline
+	Writes a headline
 .DESCRIPTION
 	This PowerShell script writes the given text as a headline.
 .PARAMETER text
-	Specifies the headline text
+	Specifies the text to write
 .EXAMPLE
 	PS> ./write-headline.ps1 "Hello World"
 
@@ -17,8 +17,9 @@
 #>
 
 param([string]$text = "")
+
 try {
-	if ($text -eq "") { $text = Read-Host "Enter the headline text" }
+	if ($text -eq "") { $text = Read-Host "Enter the text to write" }
 
 	Write-Host "`n* $text *" -foregroundColor green
 	[int]$len = $text.Length