diff options
| -rw-r--r-- | sys/src/cmd/auth/as.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/src/cmd/auth/as.c b/sys/src/cmd/auth/as.c index e4f03852a..89d1285e9 100644 --- a/sys/src/cmd/auth/as.c +++ b/sys/src/cmd/auth/as.c @@ -52,7 +52,10 @@ main(int argc, char *argv[]) initcap(); srand(getpid()*time(0)); - runas(argv[0], argv[1]); + if(argc >= 2) + runas(argv[0], argv[1]); + else + usage(); } void @@ -88,7 +91,7 @@ erealloc(void *p, ulong n) void usage(void) { - fprint(2, "usage: %s [-c]\n", argv0); + fprint(2, "usage: %s [-c] [user] [command]\n", argv0); exits("usage"); } |