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

Your last example if failing because "&" treats the string as one argument, so it is looking for a program named "cmd /c echo foo.exe". :)

This works:

& $cmd $params

As for the double quote issue, it does seem that cmd does not like the quotes around arguments that PowerShell puts. It gets this:

cmd "/c echo foo"

So I think it treats everything after /c as the exact command, so like so:

echo foo"

Some command line programs and funky parsing of the command line (that is why PowerShell takes over this job for functions and cmdlets). In the case of cmd, I would suggest this:

$param = "echo foo"
& cmd /c $param