From: Stephane Chazelas <Stephane_Chazelas@yahoo.fr>
To: zsh-workers@sunsite.dk
Subject: Re: POSIX conformance in coreutils
Date: Wed, 12 Jan 2005 10:42:11 +0000 [thread overview]
Message-ID: <20050112104211.GA6968@sc> (raw)
In-Reply-To: <200501121027.j0CAR12W018808@news01.csr.com>
On Wed, Jan 12, 2005 at 10:27:01AM +0000, Peter Stephenson wrote:
> Vin Shelton wrote:
> > GNU coreutils (at least versions 5.2.1 and 5.3.0) enforce POSIX
> > conformance, so they don't like 'tail -1', instead they require
> > 'tail -n 1'.
>
> Might the environment variable POSIXLY_CORRECT be set? That seems to be
> the effect here. We could unset it explicitly if that's the case.
[...]
As Vin said, it's more about the _POSIX2_VERSION env variable and
the default value (defined at compile time of it).
_POSIX2_VERSION=199209 tail -1
should be OK, whatever the value of POSIXLY_CORRECT for
coreutils 5.2.1 at least.
(unset POSIXLY_CORRECT; _POSIX2_VERSION=200112 tail -1)
tail: `-1' option is obsolete; use `-n 1'
Try `tail --help' for more information.
But I seem to remember there was also a warning message in some
other version, and it may not have been triggered by the same
envvar values... sigh.
--
Stéphane
next prev parent reply other threads:[~2005-01-12 10:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-12 1:01 Vin Shelton
2005-01-12 9:18 ` Stephane Chazelas
2005-01-12 16:12 ` POSIX conformance in Solaris Danek Duvall
2005-01-12 10:27 ` POSIX conformance in coreutils Peter Stephenson
2005-01-12 10:42 ` Stephane Chazelas [this message]
2005-01-12 14:19 ` Vin Shelton
2005-01-12 15:58 ` Peter Stephenson
2005-02-23 16:36 ` Oliver Kiddle
[not found] ` <okiddle@yahoo.co.uk>
2005-02-23 18:24 ` Peter Stephenson
2005-01-12 16:18 ` Bart Schaefer
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