GNU bug report logs - #24276
head without pipline is not reading complete STDIN, resulting in unwilling and unexpected command execution

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Package: coreutils;

Reported by: Sebastian <sebastian <at> ifyouwantblood.de>

Date: Sat, 20 Aug 2016 22:40:01 UTC

Severity: normal

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #10 received at 24276-done <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Sebastian <sebastian <at> ifyouwantblood.de>, 24276-done <at> debbugs.gnu.org
Subject: Re: bug#24276: head without pipline is not reading complete STDIN,
 resulting in unwilling and unexpected command execution
Date: Sat, 20 Aug 2016 17:12:36 -0700

This is not a bug. It's quite OK for 'head' to read just as much input as is 
required, and to not bother to read the rest of input. In fact, POSIX requires 
this behavior if standard input is a seekable file. See:

http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap01.html

and look for "seekable input".
This bug report was last modified 8 years and 354 days ago.

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