PowerShell script to wait for a key press or countdown from a specified timeout with in-place countdown display.

#Wait-ForKeyOrTimeout.ps1

Function Wait-ForKeyOrTimeout {
    param (
        [int]$Timeout = 10
    )

    for ($i = $Timeout; $i -ge 0; $i--) {
        Write-Host -NoNewline "`rPress any key to close... (Closing in $i seconds) "
        
        if ([System.Console]::KeyAvailable) {
            [void][System.Console]::ReadKey($true)
            Write-Host "`rKey pressed, exiting countdown...                     " # Clear line with spaces
            return
        }

        Start-Sleep -Seconds 1
    }
    Write-Host "`rPress any key to close... (Closing in 0 seconds)                     " # Clear the last countdown
}

# Example usage
Wait-ForKeyOrTimeout -Timeout 10

README.md

Wait for Key or Timeout

This PowerShell script waits for a key press or counts down from a specified timeout, displaying the countdown in-place. If a key is pressed during the countdown, the script exits immediately.

Wait-ForKeyOrTimeout.ps1.mp4

Usage

Wait-ForKeyOrTimeout -Timeout 10

This will display a message counting down from 10 seconds, updating in-place, and will exit immediately if a key is pressed during the countdown.

Parameters

• Timeout: The number of seconds to count down from (default is 10).