X-Spam-Check-By: sourceware.org X-Envelope-To: X-Virus-Status: Clean Message-ID: <461CF9DD.2090505@mscha.nl> Date: Wed, 11 Apr 2007 17:08:13 +0200 From: Michael Schaap Reply-To: cygwin AT cygwin DOT com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070326 Thunderbird/2.0.0.0 Mnenhy/0.7.5.0 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: [ANNOUNCEMENT] Updated: cron 4.1-1 References: <461CEAAC DOT 7040608 AT mscha DOT nl> <010a01c77c43$e1ea24e0$3c0110ac AT wirelessworld DOT airvananet DOT com> <461CEEE0 DOT 7040202 AT mscha DOT nl> <011601c77c45$e87c8210$3c0110ac AT wirelessworld DOT airvananet DOT com> <461CF3E6 DOT 2050802 AT mscha DOT nl> <011c01c77c48$d71fbf20$3c0110ac AT wirelessworld DOT airvananet DOT com> In-Reply-To: <011c01c77c48$d71fbf20$3c0110ac@wirelessworld.airvananet.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 8bit X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On 11-Apr-2007 16:51, Pierre A. Humblet wrote: > ----- Original Message ----- > From: "Michael Schaap" > To: > Sent: Wednesday, April 11, 2007 10:42 AM > Subject: ***[Possible UCE]*** Re: [ANNOUNCEMENT] Updated: cron 4.1-1 > > > | On 11-Apr-2007 16:30, Pierre A. Humblet wrote: > | > | "[ -e /usr/sbin/sendmail ]" is true when a symlink > | > | "/usr/sbin/sendmail.exe" exists. > | > > | > Precisely if "[ -e /usr/sbin/sendmail ]" is true then > | > || ln -sf /usr/bin/cronlog /usr/sbin/sendmail > | > shouldn't run. > | > > | Indeed it doesn't. But then: > | > | [ -e /usr/sbin/sendmail ] && rm -f /usr/sbin/sendmail.exe > | > | does run. > | > | – Michael > | > | (I can't stand that syntax, by the way. It's so much easier to see > | what's going on when you use a proper "if"...) > > Except if that if /usr/sbin/sendmail.exe did exist in the first place > (not a dangling link) then cronlog would not have been linked, > for the same reason: > [ -e /usr/sbin/sendmail -o -e /usr/sbin/sendmail.exe ] > > and thus the rm -f would not do anything except possibly remove > a dangling symlink. I still don't understand what happened. > > Okay, I have a symlink sendmail.exe -> /usr/sbin/ssmtp.exe The following code: [ -e /usr/sbin/sendmail -o -e /usr/sbin/sendmail.exe ] || ln -sf /usr/bin/cronlog /usr/sbin/sendmail does nothing, since "-e /usr/sbin/sendmail.exe" is true. Then this code runs: [ -e /usr/sbin/sendmail ] && rm -f /usr/sbin/sendmail.exe and *does* "rm -f /usr/sbin/sendmail.exe", since "-e /usr/sbin/sendmail.exe" is (still) true. I'd just rewrite this as a proper "if". Much easier to read and maintain. (I don't really see what you're trying to do with that last statement anyway. In which situation is it supposed to do something useful?) – Michael -- 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/