diff options
Diffstat (limited to 'winsup/utils/kill.cc')
| -rw-r--r-- | winsup/utils/kill.cc | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/winsup/utils/kill.cc b/winsup/utils/kill.cc index da1721f0e..6c72f053b 100644 --- a/winsup/utils/kill.cc +++ b/winsup/utils/kill.cc @@ -32,10 +32,11 @@ static char opts[] = "hl::fs:"; extern "C" const char *strsigno (int); static void -usage (void) +usage (FILE *where = stderr) { - fprintf (stderr, "Usage: kill [-sigN] pid1 [pid2 ...]\n"); - exit (1); + fputs ("usage: kill [-signal] [-s signal] pid1 [pid2 ...]\n" + " kill -l [signal]\n", where); + exit (where == stderr ? 1 : 0); } static int @@ -140,6 +141,9 @@ main (int argc, char **argv) case 'f': force = 1; break; + case 'h': + usage (stdout); + break; case '?': if (gotsig) usage (); |