X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=2.1 required=5.0 tests=AWL,BAYES_00,J_CHICKENPOX_64,RCVD_IN_CHINA,RCVD_IN_DNSWL_LOW,RCVD_NUMERIC_HELO,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org To: cygwin@cygwin.com From: Hongyi Zhao Subject: Re: Delete a specific type of files when they exist. Date: Fri, 09 Jan 2009 21:38:15 +0800 Lines: 38 Message-ID: References: <49674D3B.20008@byu.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Fri, 09 Jan 2009 06:12:27 -0700, Eric Blake wrote: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > >According to Hongyi Zhao on 1/8/2009 8:55 PM: >> if [ -f *.cache-2 ] rm *.cache-2 >> >> But it seems that this -f parameter in the _if_ command will not work >> with wildcard, i.e., the _[ -f *.cache-2 ]_ isn't a valid arg. Any >> hints on this issue? > >Not cygwin specific. Your problem is that using a glob can expand to more >than one argument, whereas "[ -f ... ]" expects exactly one argument in >place of ...; Thanks for your analyse. > using echo will show you where you went wrong: > >echo [ -f *.cache-2 ] But I cann't figure this out, see the following results on my box: $ echo [ -f *.cache-2 ] [ -f *.cache-2 ] I cann't see any differences between your code and the following one: $ echo something and something something and something Could you please give me some more hints? Regards, -- .: Hongyi Zhao [ hongyi.zhao AT gmail.com ] Free as in Freedom :. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/