[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

bug#8102: [head] do not return EXIT_SUCCESS upon premature EOF

From: Eric Blake
Subject: bug#8102: [head] do not return EXIT_SUCCESS upon premature EOF
Date: Wed, 23 Feb 2011 13:16:00 -0700
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.7

On 02/23/2011 11:58 AM, Bjartur Thorlacius wrote:
> % echo | head -n2 && echo bug
> bug
> This bit me when writing a line oriented prompter (which would `while
> head -n1`).
> FYI, this also applies to FreeBSD head.

That's because this is not a bug, but a POSIX requirement:


"When a file contains less than number lines, it shall be copied to
standard output in its entirety. This shall not be an error."

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

Attachment: signature.asc
Description: OpenPGP digital signature

reply via email to

[Prev in Thread] Current Thread [Next in Thread]