Date: Sun, 30 Aug 1998 20:16:11 +0200
From: Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Message-Id: <199808301816.UAA28130@acp3bf.physik.rwth-aachen.de>
To: wpp AT brinet DOT com
Cc: djgpp AT delorie DOT com
Subject: Re: 2 quick questions
Newsgroups: comp.os.msdos.djgpp
Organization: RWTH Aachen, III. physikalisches Institut B
Precedence: bulk

In article <35e75646 DOT 2796107 AT cnews DOT newsguy DOT com> you wrote:
> >1]  what does the exit code tell you?
[...]
> RE 1]   the exit code from main is passed back to the OS. MS-DOS uses
> this value to set the environment variable errlevel.  You can use that
> value in a batch file to control batch file processing.

To pick a small nit: It's called errorlevel, I think, and it's not an
environment variable. It's a special option of the 'if' command.
That's also the reason it's not written 'if %errorlevel%==1' but 'if
errorlevel 1'.

--
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.