If you want to send a script block to a remote computer, it is important to understand that the script block is evaluated on the remote computer. So all local variables are null:
PS> $Path = 'C:\test' PS> $scriptblock = { "Variable Path is $Path" } PS> & $scriptblock Variable Path is C:\test PS> Invoke-Command -Scriptblock $scriptblock -ComputerName storage1 Variable Path is
In PowerShell v3, you can prefix a local variable with "using:" so that it will get transferred to the remote machine:
PS> $Path = 'C:\test' PS> $scriptblock = { "Variable Path is $using:Path" } PS> Invoke-Command -Scriptblock $scriptblock -ComputerName storage1 Variable Path is C:\test
Note that the prefix "using" is allowed only in script blocks that are executed by Invoke-Command and sent to a remote machine or with InlineScript inside a workflow.
