From: Avdi Grimm <avdi@...>
Date: 2008-12-04T12:28:25+09:00
Subject: Re: rescuing a failed %x[] call?

On Wed, Dec 3, 2008 at 6:02 PM, Kyle Schmitt <kyleaschmitt@gmail.com> wrote:
> I know it should be streightforward, but I'm not finding the docs anywhere...
>
> How does one go about rescuing a failed shell command?  like in the
> instance it fails, or the command isn't found?

According to some experiments in IRB, the failed shell command won't
raise an exception; it will leave a non-zero exit code in the $?
special variable.  You'll need to check the value of $? and take
action accordingly.

-- 
Avdi

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