From: Bil Kleb <Bil.Kleb@...>
Date: 2005-09-10T23:41:30+09:00
Subject: Re: [QUIZ] NDiff (#46)

Jacob Fugal wrote:
> On 9/9/05, Jim Freeze <jim@freeze.org> wrote:
> 
>>A little note, I did not understand "just exit code" for -q. What is
>>'-q' supposed to do. No output at all?
> 
> Yes, as in "no output to STDOUT". But there is output: the exit code.
> This is a common feature of many unix tools (e.g. diff[1], grep). It
> allows the tool to be used in a boolean environment during shell
> scripting. An exit code of 0 means there was no difference (within
> tolerance), and a non-zero exit code means there was a difference.

An exit code is much desired for our application.

Regards,
--
Bil
http://fun3d.larc.nasa.gov