Added Files

Powershell/Scripts/set-timer.ps1

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+<#
+.SYNTAX       set-timer.ps1 [<seconds>]
+.DESCRIPTION  sets a timer for a countdown
+.LINK         https://github.com/fleschutz/PowerShell
+.NOTES        Author: Markus Fleschutz / License: CC0
+#>
+
+param([int]$Seconds = 0)
+if ($Seconds -eq 0 ) { [int]$Seconds = read-host "Enter number of seconds" }
+
+try {
+	for ($i = $Seconds; $i -gt 0; $i--) {
+		clear-host
+		./write-big "T-$i seconds"
+		start-sleep -s 1
+	}
+	write-host -foregroundColor green "Done - $Seconds seconds countdown finished"
+	exit 0
+} catch {
+	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}