GNU bug report logs - #41634
'timeout' returning 124 and 133

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From: Jonny Grant <jg <at> jguk.org>
To: 41634 <at> debbugs.gnu.org
Subject: bug#41634: 'timeout' returning 124 and 133
Date: Sun, 31 May 2020 22:22:47 +0100

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Hello

I'm using timeout with another program that doesn't have a timeout mechanism. Saw surprisingly timeout often returns 124

I was a bit surprised the return code as a signal was not 143 (128+ 15) for SIGTERM. I must be missing something.

This article says 124 for SIGTERM, and as expected 137 for SIGKILL (128+9)
https://www.howtogeek.com/423286/how-to-use-the-timeout-command-on-linux/

The man page says "Start COMMAND, and kill it if still running after DURATION.", it sounds like it's doing 'kill -s
SIGTERM' after DURATION. Then if -k argument it is doing 'kill -s SIGKILL'


Could the 124 and 137 be documented on the man page?

Regards, Jonny

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