From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14954 invoked from network); 12 Jan 2005 10:41:18 -0000 Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88) by ns1.primenet.com.au with SMTP; 12 Jan 2005 10:41:18 -0000 Received: (qmail 86128 invoked from network); 12 Jan 2005 10:41:10 -0000 Received: from sunsite.dk (130.225.247.90) by a.mx.sunsite.dk with SMTP; 12 Jan 2005 10:41:10 -0000 Received: (qmail 25949 invoked by alias); 12 Jan 2005 10:40:56 -0000 Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 20693 Received: (qmail 25935 invoked from network); 12 Jan 2005 10:40:55 -0000 Received: from news.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.247.88) by sunsite.dk with SMTP; 12 Jan 2005 10:40:55 -0000 Received: (qmail 85794 invoked from network); 12 Jan 2005 10:40:55 -0000 Received: from smtp-out6.blueyonder.co.uk (195.188.213.9) by a.mx.sunsite.dk with SMTP; 12 Jan 2005 10:40:51 -0000 Received: from sc ([82.41.210.43]) by smtp-out6.blueyonder.co.uk with Microsoft SMTPSVC(5.0.2195.6713); Wed, 12 Jan 2005 10:41:24 +0000 Date: Wed, 12 Jan 2005 10:42:11 +0000 From: Stephane Chazelas To: zsh-workers@sunsite.dk Subject: Re: POSIX conformance in coreutils Message-ID: <20050112104211.GA6968@sc> Mail-Followup-To: zsh-workers@sunsite.dk References: <200501121027.j0CAR12W018808@news01.csr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <200501121027.j0CAR12W018808@news01.csr.com> User-Agent: Mutt/1.5.6i X-OriginalArrivalTime: 12 Jan 2005 10:41:24.0421 (UTC) FILETIME=[432E5F50:01C4F893] X-Spam-Checker-Version: SpamAssassin 2.63 on a.mx.sunsite.dk X-Spam-Level: * X-Spam-Status: No, hits=1.5 required=6.0 tests=BAYES_44,RCVD_IN_SORBS autolearn=no version=2.63 X-Spam-Hits: 1.5 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