1 files changed, 7 insertions, 1 deletions

diff --git a/yes.c b/yes.c
index ac67845ac..a822ebc1d 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++)