PowerShell/Scripts/set-timer.ps1

<#
.SYNOPSIS
	set-timer.ps1 [<seconds>]
.DESCRIPTION
	Sets a timer for a countdown.
.EXAMPLE
	PS> .\set-timer.ps1 60
.NOTES
	Author: Markus Fleschutz · License: CC0
.LINK
	https://github.com/fleschutz/PowerShell
#>

param([int]$Seconds = 0)

try {
	if ($Seconds -eq 0 ) { [int]$Seconds = read-host "Enter number of seconds" }

	for ($i = $Seconds; $i -gt 0; $i--) {
		clear-host
		./write-big "T-$i seconds"
		start-sleep -s 1
	}

	"✔️ $Seconds seconds countdown finished"
	exit 0
} catch {
	write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}