How to use Script Parameters with Invoke-Command

Question

I'm currently facing a challenge while using remote PowerShell over SSH to execute a script on a Windows machine and pass parameters.

Locally, I run the script with parameters using this command:

.\Update-PasswordArchive.ps1 -LocalUserName Administrator

However, when attempting to run the script remotely using Invoke-Command, I encounter difficulties passing the -LocalUserName parameter. Here's the remote command I use: *

Invoke-Command -HostName '192.168.1.100:54823' -FilePath C:\_scripts\Update-PasswordArchive.ps1

The problem is because, with Invoke-Command, I can't directly pass parameters for the script as I normally would. If I append the parameters after the script, it produces an error, as they are interpreted by the Invoke-Command itself rather than being passed to the script.

Is there a recommended solution or workaround for passing parameters when using Invoke-Command over SSH?

*(Don't get confused by the hostname, this is the IP of a VyOS Gateway and by the rule configured to port 54823 it useses NAT to forward to the desired maschine behind it) - So I assume there is no other way to remote PowerShell as SSH. I need a fix port and I have to use the IP:Port combination for the connection.

Answer 1

Use the ArgumentList switch for positional parameters.

https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/invoke-command?view=powershell-5.1

Or use a script block.

Invoke-Command -ComputerName '192.168.1.100:54823' -ScriptBlock {          C:\_scripts\Update-PasswordArchive.ps1 -LocalUserName Administrator
}

Or..

$acct = "admin"
Invoke-Command -ComputerName '192.168.1.100:54823' -ScriptBlock {    C:\_scripts\Update-PasswordArchive.ps1 -LocalUserName $using:acct
}

See the answer from RobG.

https://stackoverflow.com/questions/4225748/how-do-i-pass-named-parameters-with-invoke-command