From: "Marvin Gülker" <sutniuq@...>
Date: 2009-12-14T04:34:20+09:00
Subject: Re: getting shell output

Matt Harrison wrote:
> I appears that dump writes all of its status output to stderr, and I can
> redirect that on the command line using "2>&1" to get it into a file. 
> I'm
> unable however to find something similar for ruby.
> 
> I've tried backticks (``), %x{}. system() and exec() as well as 
> IO.popen()
> but they all fail to intercept the stderr output. I've even tried adding
> "2>&1" to the command but it makes no difference.

Try open3 from the stdlib:
--------------------------
require "open3"
Open3.popen3("command") do |stdin, stdout, stderr|
  #Your code...
end
---------------------------

Marvin
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