diff options
Diffstat (limited to 'src/chmod.c')
| -rw-r--r-- | src/chmod.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/src/chmod.c b/src/chmod.c index 511e3e22a..9df0c33be 100644 --- a/src/chmod.c +++ b/src/chmod.c @@ -149,7 +149,7 @@ main (argc, argv) verbose = 1; break; default: - usage (); + usage (1); } } @@ -160,13 +160,13 @@ main (argc, argv) } if (show_help) - usage (); + usage (0); if (modeind == 0) modeind = optind++; if (optind >= argc) - usage (); + usage (1); changes = mode_compile (argv[modeind], MODE_MASK_EQUALS | MODE_MASK_PLUS | MODE_MASK_MINUS); @@ -302,12 +302,30 @@ describe_change (file, mode, changed) } static void -usage () +usage (status) + int status; { fprintf (stderr, "\ -Usage: %s [-Rcfv] [--recursive] [--changes] [--silent] [--quiet]\n\ - [--verbose] [--help] [--version] mode file...\n\ - mode is [ugoa...][[+-=][rwxXstugo...]...][,...] or octal number\n", - program_name); - exit (1); +Usage: %s [OPTION]... MODE[,MODE]... FILE...\n\ + or: %s [OPTION]... OCTAL_MODE FILE...\n\ +\n", + program_name, program_name); + + if (status == 0) + fprintf (stderr, "\ + -c, --changes be verbose whenever change occurs\n\ + -f, --silent, --quiet avoid most error messages\n\ + -v, --verbose explain what is being done\n\ + -R, --recursive change files and directories recursively\n\ + --help provide this help\n\ + --version show program version\n\ +\n\ +Each MODE is one or more of letters ugoa, one of the signs +-= and one\n\ +or more of letters rwxXstugo.\n"); + + else + fprintf (stderr, "Try `%s --help' for more information.\n", + program_name); + + exit (status); } |