From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15791 invoked by alias); 2 Apr 2012 11:43:01 -0000 Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Users List List-Post: List-Help: X-Seq: 16955 Received: (qmail 137 invoked from network); 2 Apr 2012 11:42:58 -0000 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_LOW, SPF_HELO_PASS autolearn=ham version=3.3.2 Received-SPF: none (ns1.primenet.com.au: domain at csr.com does not designate permitted sender hosts) Date: Mon, 2 Apr 2012 12:39:13 +0100 From: Peter Stephenson To: Subject: Re: `cd .` in non-existent directory leads into weird corner case Message-ID: <20120402123913.4f74bfc4@pwslap01u.europe.root.pri> In-Reply-To: References: <120327073414.ZM6783@torch.brasslantern.com> <20120402111219.62cbd0c7@pwslap01u.europe.root.pri> <20120402120008.0ed7e583@pwslap01u.europe.root.pri> Organization: Cambridge Silicon Radio X-Mailer: Claws Mail 3.7.9 (GTK+ 2.22.0; i386-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.101.10.170] X-Scanned-By: MailControl 7.7.0 (www.mailcontrol.com) on 10.68.0.148 On Mon, 2 Apr 2012 13:10:17 +0200 Mikael Magnusson wrote: > One (semi-)realistic case I came up with, one shell sits in a > directory, someone else first moves the directory, then deletes it, > then the shell tries to 'cd ..'. In this case I would like it to end > up in the new parent directory as it does now [1], not the old > "$PWD:h". (with chasedots/-P) (and even if I did 'cd .' first for some > weird reason). That last bit's going to depend on what error handling happens when "cd ." fails, both internally and in the shell code. Internally, the right thing to do, presumably, is if we don't do the bogus PWD=. just leave PWD as it was before, which seems natural enough. Otherwise, as far as I can it's the same basic case as before --- if it used to do some sensible it still should. -- Peter Stephenson Software Engineer Tel: +44 (0)1223 692070 Cambridge Silicon Radio Limited Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, UK Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom More information can be found at www.csr.com. Follow CSR on Twitter at http://twitter.com/CSR_PLC and read our blog at www.csr.com/blog