Norm Long.ps1

[CmdletBinding()]
param(
    [Parameter(Mandatory, HelpMessage="Enter one or more VM names separated by commas. Value should not be null or empty")]
    [ArgumentCompleter(
        {
            param($Command, $Parameter, $WordToComplete, $CommandAst, $FakeBoundParams)
            if ($WordToComplete) {
                @((Get-VM).Name) -match "^$WordToComplete"
            }
            else {
                (Get-VM).Name
            }
        }
    )]
    [ValidateScript(
        {
            foreach ($Name in $_) {
                if (-not (Get-VM $Name -ErrorAction SilentlyContinue)) {
                    throw "Please enter a valid VM Name."
                }
            }
        }
    )]
    [String[]]
    $servername
)