From: Tim Hunter <TimHunter@...>
Date: 2007-09-09T23:28:56+09:00
Subject: Re: Run UNIX command

Pieter Jongsma wrote:
> Hi,
>
> I'm looking for a way to execute an UNIX command from a ruby program.
> For instance, when the user selected a .tar.gz file, using the untar
> command to decompress it.
> How can I do that?
>
> Thanks in advance!
> pieter.
>   
There's a variety of ways to do that, depending on your needs. The 
simplest is to use the Kernel.system method:

system("ls")

If you need the stdout output from the command, use backticks:

output = `ls`

If you need more control, check out IO.popen.

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