Author Posts

November 6, 2017 at 7:01 pm

Hello I am using below scriptblock and have passed variable name "localfolderpath" where while testing path it is coming null . could you please suggest what I am missing here . Due to this we are unable to folder for users who do not have it on server.

$ScriptBlockDir = {
Param (
[string] $samAccountName )

if( $Env:ComputerName -eq "fileserver101" ) {
$LocalFolderPath = "H:\Users"
else {
$LocalFolderPath = "D:\Users"

if( -not (test-path -Path "$LocalFolderPath\$samAccountName") ) {
try {
LogEntry "New Home Drive Folder"
$NewFolder = New-Item -Path $LocalFolderPath -Name $samAccountName -ItemType Directory
return 1
catch {
Write-Host "Failed with error"
return -1

Write-Host "already exists"
return 0

$result = Invoke-Command -Session $PSSession -ScriptBlock $ScriptBlockDir -ArgumentList $samAccountName

November 6, 2017 at 8:49 pm

# See – PSTip Passing local variables to a remote session in PowerShell 3.0

# As well as

November 6, 2017 at 11:00 pm

Test by using a simple test 1st to get the hand of how remoting and variables works and go from there.

Test path using the local computer

PS C:\> Invoke-Command -ComputerName "localhost" -ScriptBlock {Test-Path C:\Windows}

Now add the path to a variable

PS C:\> $path = "C:\Windows"

Use the variable in your remoting session and it fails because the variable is local to your machine and not the remote machine.

PS C:\> Invoke-Command -ComputerName "localhost" -ScriptBlock {Test-Path $path}
Cannot bind argument to parameter 'Path' because it is null.
    + CategoryInfo          : InvalidData: (:) [Test-Path], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.TestPathCommand
    + PSComputerName        : localhost

To get the local variable sent over to the remote machine you have to prefix it with "using"

PS C:\> Invoke-Command -ComputerName "localhost" -ScriptBlock {Test-Path $using:path}

November 7, 2017 at 5:55 pm


just for your information
just removed logentry line from try block and it worked
logentry is a function we have to logs comments.

thanks for your reply