Powershell Command Processing (Passing in Variables)

Question

I\'m creating a Powershell script to deploy some code and part of the process is to call a command-line compression tool called RAR.EXE to back-up some folders.

I\'m at

Answer 1

I have had problems with the & call operator in the past when trying to invoke executable type commands like you are trying. Not sure I understand why. Invoke-Expression however, always seems to work in this context:

PS C:\> $cmd = "cmd /c echo foo"
PS C:\> Invoke-expression $cmd
foo