Exiting a Function

To exit a function immediately, use the return statement. The next function expects a name (including wildcards) and lists all matching processes. If no name is specified, the function outputs a warning message and exits the function using return:

function Get-NamedProcess($name=$null) {
	if ($name -eq $null) {
		Write-Host -foregroundcolor Red 'Specify a name!'
		return
	}

	Get-Process $name
}