Path: utzoo!attcan!uunet!convex!killer!ames!mailrus!iuvax!silver!creps From: creps@silver.bacs.indiana.edu (Steve Creps) Newsgroups: comp.sys.ibm.pc Subject: Re: How to determine stdin/out redirection Message-ID: <2339@silver.bacs.indiana.edu> Date: 26 Sep 88 16:58:04 GMT References: <9465@cup.portal.com> Reply-To: creps@silver.UUCP (Steve Creps) Organization: IU CS Dept Lines: 15 In article <9465@cup.portal.com> Steve_R_Calwas@cup.portal.com writes: >Is there a way for an application program to determine whether or not its >standard input and/or standard output are being redirected? Try if (!isatty(fileno(stdin))) { /* stdin is being redirected */ } and similarly for stdout. That's assuming you're using C. - - - - - - - - - - Steve Creps, Indiana University, Bloomington, home of the "Hoosiers" creps@silver.bacs.indiana.edu (192.12.206.2) {inuxc,rutgers,pyramid,pur-ee}!iuvax!silver!creps creps@iubacs.bitnet (forwarded)