From: MonkeeSage <MonkeeSage@...>
Date: 2006-09-09T13:01:59+09:00
Subject: Re: Capturing stderr from Kernel.exec

Carl Lerche wrote:
> Hello,
>
> I'm trying to run some simple commands using Kernel.exec but need to
> capture the stderr for them. Is there an (easy) way to do it with
> just ruby and the standard library or should I get open4?
>
> Thanks,
> -carl

Kernel#exec never returns control; it replaces the ruby process with
the one you pass it. You need open3 (stdlib) or popen4.

[1] http://ruby-doc.org/stdlib/libdoc/open3/rdoc/index.html
[2] http://popen4.rubyforge.org/

Regards,
Jordan