aboutsummaryrefslogtreecommitdiff
path: root/src/cmd/grep
diff options
context:
space:
mode:
Diffstat (limited to 'src/cmd/grep')
-rw-r--r--src/cmd/grep/main.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/cmd/grep/main.c b/src/cmd/grep/main.c
index d37aeb10..a847d73f 100644
--- a/src/cmd/grep/main.c
+++ b/src/cmd/grep/main.c
@@ -5,7 +5,7 @@ char *validflags = "bchiLlnsv";
void
usage(void)
{
- fprint(2, "usage: grep [-%s] [-f file] [-e expr] [file ...]\n", validflags);
+ fprint(2, "usage: grep [-%s] [-e pattern] [-f patternfile] [file ...]\n", validflags);
exits("usage");
}
@@ -31,12 +31,12 @@ main(int argc, char *argv[])
case 'e':
flags['e']++;
lineno = 0;
- str2top(ARGF());
+ str2top(EARGF(usage()));
break;
case 'f':
flags['f']++;
- filename = ARGF();
+ filename = EARGF(usage());
rein = Bopen(filename, OREAD);
if(rein == 0) {
fprint(2, "grep: can't open %s: %r\n", filename);