Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm 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 Content-class: urn:content-classes:message MIME-Version: 1.0 Subject: RE: tail -f and pipes with bash shell Content-Type: text/plain; charset="us-ascii" Date: Fri, 13 May 2005 02:13:44 +0200 Message-ID: <90459864DAD67D43BDD3D517DEFC2F7D05AF27@axon.Axentia.local> From: "Peter Ekberg" To: "Lev Bishop" Cc: X-IsSubscribed: yes Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id j4D0EA6W030288 Lev Bishop wrote: > Try "grep --line-buffered" to get grep to flush output after every > line. There is a performance penalty for doing this. I don't know why > you don't see the buffering when grep's stdout isn't redirected. > Perhaps grep (or the std library) removes/reduces buffering in the > case the output is a terminal. > > Lev Yes, that works for this slimed down example, but probably not for the real work, as that includes several other commands that do not all have a --line-buffered equivalent. Thanks for you time though. I'll drop this now, it's getting more complex than the task deserves. I can get by as is... Cheers, Peter -- 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/