X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-3.0 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org MIME-Version: 1.0 In-Reply-To: References: <786EBDA1AC46254B813E200779E7AD36023A42C2@srv1163ex1.flightsafety.com> <0105D5C1E0353146B1B222348B0411A20A770C827D@NIHMLBX02.nih.gov> Date: Fri, 1 Jun 2012 11:51:40 +0200 Message-ID: Subject: Re: Shell script loop runs out of memory From: AZ 9901 To: cygwin@cygwin.com Content-Type: text/plain; charset=UTF-8 X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id q519px4e011277 2012/6/1 AZ 9901: > 2012/6/1 Adam Dinwoodie: >> Buchbinder, Barry wrote: >>> You might try changing >>>     [[ condition ]] >>> to >>>     [ condition ] >>> Perhaps single brackets use memory differently than double brackets. >> >> They do: [[ condition ]] is interpreted by the shell; [ condition ] forks to >> call /usr/bin/[.exe. If forking is the problem, that'll make it worse. >> > > So some things to avoid while (bash)scripting under Cygwin to limit > BLODA effect : - | : pipe stdout --> stdin - $(...) : subshell fork - `...` : same as before, subshell fork - [ condition ] : prefer [[ condition ]] construction - ( instructions ) : prefer { instructions } construction if possible - anything else from your point of view ? Ben -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple