PowerShell watch

Watch-Command.ps1

function Watch-Command {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline, Mandatory)]
        [object]
        $ScriptBlock,
        [int]
        $Seconds = 2
    )

    do {
        $output = Invoke-Command $ScriptBlock
        Clear-Host
        Write-Host ("Every ${Seconds}s {0,$($Host.UI.RawUI.WindowSize.Width-10)}`n" -f [datetime]::Now)
        $output
        Start-Sleep $Seconds
    } while ($true)
}
Set-Alias watch Watch-Command