From 281667bb736e7196342039513252f7b0587a52ad Mon Sep 17 00:00:00 2001 From: Pieter Kockx Date: Wed, 25 Oct 2017 09:55:50 +0200 Subject: [PATCH] sed: Add usage --- sed.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sed.c b/sed.c index 6cfd121..259b654 100644 --- a/sed.c +++ b/sed.c @@ -355,7 +355,9 @@ leprintf(char *s) static void usage(void) { - eprintf("USAGE\n"); + eprintf("usage: sed [-nrE] script [file ...]\n" + " sed [-nrE] -e script [-e script] ... [-f scriptfile] ... [file ...]\n" + " sed [-nrE] [-e script] ... -f scriptfile [-f scriptfile] ... [file ...]\n"); } /* Differences from POSIX -- 2.13.5