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Re: system command output different in guile than on command line


From: tomas
Subject: Re: system command output different in guile than on command line
Date: Wed, 5 Aug 2020 14:24:49 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Wed, Aug 05, 2020 at 11:27:30AM +0000, vapnik spaknik via General Guile 
related discussions wrote:

[...]

> OK... I was being stupid.

We all are, most of us more often than not ;-)

>Another strange thing is that if I use the pipeline procedure to do the same 
>thing, then I get an exit code of 1 >from the wc command, but it still returns 
>the same result:

This is by design. Quote the "diff" man page:

  "Exit status is 0 if inputs are the same, 1 if different,
   2 if trouble."

That's probably so that you can do things in the shell like

  diff a b > /dev/null && echo "same" || echo "diff"

Cheers
-- t

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