PowerShell function with parameters? [duplicate]

Question

I have a PoSH script that I can't figure out is not running..

function Connect-AD
{
    Param($mod,$cmd)
    Write-Host "$mod $cmd"
    Write-Host "`tConnecting to AD: $DC`n"
    $ADSession = New-PSsession -ComputerName $DC -Credential $MyCredential
    Invoke-Command -Command {Import-Module ('$mod') -Cmdlet ('$cmd')} -Session $ADSession
    Import-PSSession -Session $ADSession -Module ('$mod') -Prefix r | Out-Null
}

I then try to call this with..

Connect-AD -mod 'ActiveDirectory' -cmd 'Get-ADUser,New-ADUser'

But no mater what I do I keep getting..

The specified module '$mod' was not loaded because no valid module file was found in any module directory.

The Write-Host inside the function outputs the parameters correctly, so it is getting that far. However it is not being passed into the Invoke-Command or Import-PSSession?

I've tried different ways to escape the parameters, etc.. but no luck.

What am I not doing correctly? Anyone able to help me out? Thanks.

Community · Accepted Answer · 2017-05-23 12:00:44Z

7

Single quoted strings don't interpolate variables, '$mod' is a literal string "dollar m o d".

And you probably need to read all the similar questions on passing parameters to Invoke-Command, because the command {} is running on another computer - how will it know what the variable $mod is on your computer?

Passing string $variable to invoke-command scriptblock parameter -name

Powershell: How to pass parameter with invoke-command and -filepath remotely?

Something like

Invoke-Command -Command {param($mod, $cmd) Import-Module $mod -Cmdlet $cmd} -Session $ADSession -ArgumentList $mod,$cmd

Help Links (if available):

edited May 23, 2017 at 12:00

CommunityBot

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answered Oct 29, 2016 at 3:16

TessellatingHeckler

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