X-Spam-Check-By: sourceware.org Date: Tue, 19 Sep 2006 11:38:37 -0400 (EDT) From: Igor Peshansky Reply-To: cygwin@cygwin.com To: "Williams, Gerald S (Jerry)" cc: cygwin@cygwin.com Subject: RE: Read not honouring "-r"? In-Reply-To: <4C89134832705D4D85A6CD2EBF38AE0F7B0E05@PAUMAILU03.ags.agere.com> Message-ID: References: <4C89134832705D4D85A6CD2EBF38AE0F7B0E05@PAUMAILU03.ags.agere.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk 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 On Tue, 19 Sep 2006, Williams, Gerald S (Jerry) wrote: > Doug Irwin wrote: > > One would expect a "read -r fs t2 t3" to process this without > > attempting to expand slashes. But I can't seem to get this bit > > working... And I can't seem to find any doco on doing that in Cygwin. > > > > I've attached the files I am testing with in the hope that someone > > can help me work this out. > > > > No doubt I have missed something rather obvious. > > "-r" has nothing to do with it: CR/LF line endings are the > culprit. > > This seems to be particularly tied to ksh, and specifically > when you use "<" to redirect a file. If you simply pipe the > output of grep to the while loop, it works. Interestingly, > sh, bash, and zsh all give the behavior you were expecting. Thanks for the detective work, Jerry -- I almost missed the textmode issue. > So for the short term, run d2u on filesystems.cfg. If you > plan to continue using ksh, you may want to follow up and > try to understand the discrepancy--there may be an option > that allows you to get the behavior you want (and if not, > it may be worth having KSH's behavior changed to be more > consistent with other shells, but that's something for > the maintainer and/or upstream KSH support to decide). Unfortunately, there is no option to control this. Neither is there any upstream KSH support. The "quick fix" I mentioned in the previous message simply disables seeking and buffering everywhere in PDKsh, so expect slowdowns with large scripts/data files in the new version. But at least it'll be correct. Igor -- http://cs.nyu.edu/~pechtcha/ |\ _,,,---,,_ pechtcha@cs.nyu.edu | igor@watson.ibm.com ZZZzz /,`.-'`' -. ;-;;,_ Igor Peshansky, Ph.D. (name changed!) |,4- ) )-,_. ,\ ( `'-' old name: Igor Pechtchanski '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! "Las! je suis sot... -Mais non, tu ne l'es pas, puisque tu t'en rends compte." "But no -- you are no fool; you call yourself a fool, there's proof enough in that!" -- Rostand, "Cyrano de Bergerac" -- 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/