How to return data from a PowerShell function

Functions allow us to modularize our scripts and reuse code over and over again. In some cases, you may want PowerShell to return information back to the parent scope so it can continue to be used. Below is a very simple function.

Function DoMath
{
$a = 5 + 5

}
DoMath

When we call this function, it returns our data. We can set it up to return the data to a variable by calling the function with this command:

$a = DoMath

The Return keyword is available. Return acts as a break for the function. It will return the data specified, and stop processing the rest of the function.

Function DoMath

{
$a = 5 + 5
Return

Write-Host $a

}

DoMath

Even though there is a Write-Host statement, the Return keyword prevents its execution.

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How to run GPResult on a remote client with PowerShell

In the past, to run the GPResult command, you would need to either physically visit this client, have the user do it, or use and RDP connection. In all cases, this will disrupt the user. First, you need PowerShell remoting enabled on the target machine. You can do this via Group Policy . Open PowerShell and type this command. Invoke-Command –ScriptBlock {GPResult /r} –ComputerName <ComputerName> Replace <ComputerName> with the name of the target. Remember, the target needs to be online and accessible to you.

Set up your Environment to utilize Invoke-GPUpdate

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Jason Yoder, MCT

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