From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1547 invoked from network); 9 Jul 2009 13:13:00 -0000 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,UNPARSEABLE_RELAY autolearn=ham version=3.2.5 Received: from new-brage.dotsrc.org (HELO a.mx.sunsite.dk) (130.225.254.104) by ns1.primenet.com.au with SMTP; 9 Jul 2009 13:13:00 -0000 Received-SPF: none (ns1.primenet.com.au: domain at sunsite.dk does not designate permitted sender hosts) Received: (qmail 59341 invoked from network); 9 Jul 2009 13:12:51 -0000 Received: from sunsite.dk (130.225.247.90) by a.mx.sunsite.dk with SMTP; 9 Jul 2009 13:12:51 -0000 Received: (qmail 26296 invoked by alias); 9 Jul 2009 13:12:36 -0000 Mailing-List: contact zsh-workers-help@sunsite.dk; run by ezmlm Precedence: bulk X-No-Archive: yes X-Seq: 27103 Received: (qmail 26266 invoked from network); 9 Jul 2009 13:12:36 -0000 Received: from bifrost.dotsrc.org (130.225.254.106) by sunsite.dk with SMTP; 9 Jul 2009 13:12:36 -0000 Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by bifrost.dotsrc.org (Postfix) with ESMTPS id 5F2BE8027106 for ; Thu, 9 Jul 2009 15:12:33 +0200 (CEST) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1MOtQO-0006un-Hz for zsh-workers@sunsite.dk; Thu, 09 Jul 2009 13:12:32 +0000 Received: from c-24-10-247-15.hsd1.ut.comcast.net ([c-24-10-247-15.hsd1.ut.comcast.net]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 09 Jul 2009 13:12:32 +0000 Received: from ebb9 by c-24-10-247-15.hsd1.ut.comcast.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 09 Jul 2009 13:12:32 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: zsh-workers@sunsite.dk From: Eric Blake Subject: bug: $? after empty command Date: Thu, 9 Jul 2009 13:12:20 +0000 (UTC) Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: main.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 24.10.247.15 (Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.16) Gecko/20080702 Firefox/2.0.0.16 Mnenhy/0.7.5.666) Sender: news X-Virus-Scanned: ClamAV 0.94.2/9550/Thu Jul 9 13:44:56 2009 on bifrost X-Virus-Status: Clean POSIX requires that the execution of an empty command change $? to 0, as shown here with bash: $ zsh -c 'foo=; false; $foo; echo $?' 1 $ bash -c 'foo=; false; $foo; echo $?' 0 -- Eric Blake