GNU bug report logs - #8102
[head] do not return EXIT_SUCCESS upon premature EOF

Previous Next

Full log

View this message in rfc822 format

From: Bjartur Thorlacius <svartman95 <at> gmail.com>
To: 8102 <at> debbugs.gnu.org
Subject: bug#8102: [head] do not return EXIT_SUCCESS upon premature EOF
Date: Fri, 25 Feb 2011 16:40:11 +0000

On 2/23/11, Eric Blake <eblake <at> redhat.com> wrote:
> On 02/23/2011 11:58 AM, Bjartur Thorlacius wrote:
> That's because this is not a bug, but a POSIX requirement:
>
> http://pubs.opengroup.org/onlinepubs/9699919799/utilities/head.html
>
> "When a file contains less than number lines, it shall be copied to
> standard output in its entirety. This shall not be an error."
>
Indeed. Since it's explicitly mentioned, I assume there's a reason for
it. I'd be grateful if someone could point out what the rationale beind
the decision is (or better yet, where such information can be found).

So should I be using a head-alike for iterating over lines, and would
such an utility belong to a GNU package, or is awk the right tool for the
job?

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.