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-rw-r--r--yes.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/yes.c b/yes.c
index ac67845..a822ebc 100644
--- a/yes.c
+++ b/yes.c
@@ -27,12 +27,18 @@ extern int yes_main(int argc, char **argv)
{
int i;
- if (argc == 1)
+ if (argc >=1 && *argv[1]=='-') {
+ usage("yes [OPTION]... [STRING]...\n\n"
+ "Repeatedly outputs a line with all specified STRING(s), or `y'.\n");
+ }
+
+ if (argc == 1) {
while (1)
if (puts("y") == EOF) {
perror("yes");
exit(FALSE);
}
+ }
while (1)
for (i = 1; i < argc; i++)