From: Jim Freeze <jim@...>
Date: 2005-09-10T04:14:25+09:00
Subject: Re: [QUIZ] NDiff (#46)

On 9/9/05, Jacob Fugal <lukfugl@gmail.com> wrote:
> 
> Thanks, Jim! I'd actually been trying to use CommandLine::Application,
> but was having some problems. Comparing what I had against this let me
> see where my problems were.

Great. Glad to have helped. Any feedback to improve CommandLine is
always appreciated.

> > 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.

Ok, thanks for that explanation. I probably would have called it
"--boolean" instead of --quiet. I always think of quiet as no verbosity,
but I could be just un-informed on this one.

-- 
Jim Freeze