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On 2000年1月16日, you wrote: > > What does the 1>&2 mean in that? > > > if (grep regexp foo 1>&2 > /dev/null) ; then > > I think it means switch stdout and stderr, and redirect the output (stdout, > which was previously stderr) to /dev/null so that it doesn't print anything > on-screen. Is that correct, Tim? > > Bill > > -- > "Because they know that all they sold you was a guaranteed POS! Look, if > you want me to take a dump in a box and mark it 'guaranteed', I will. I got > spare time." > -Chris Farley (on Microsoft?), _Tommy Boy_ Right, redirect stdout to stderr, then redirect to /dev/null. If your grep sends errors to stderr and normal to stdout: fprintf(stderr, "foo"); fprintf(stdout, "fum"); that should keep your sh script from printing the grep info to screen. Tim ______________________________________________________________________ Philadelphia Linux Users Group - http://plug.nothinbut.net Announcements - http://lists.nothinbut.net/mail/listinfo/plug-announce General Discussion - http://lists.nothinbut.net/mail/listinfo/plug