diff options
| -rw-r--r-- | src/comm.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/comm.c b/src/comm.c index a2541433f..e7acf3393 100644 --- a/src/comm.c +++ b/src/comm.c @@ -70,14 +70,22 @@ usage (int status) else { printf (_("\ -Usage: %s [OPTION]... LEFT_FILE RIGHT_FILE\n\ +Usage: %s [OPTION]... FILE1 FILE2\n\ "), program_name); fputs (_("\ -Compare sorted files LEFT_FILE and RIGHT_FILE line by line.\n\ +Compare sorted files FILE1 and FILE2 line by line.\n\ +"), stdout); + fputs (_("\ +\n\ +With no options, produce three-column output. Column one contains\n\ +lines unique to FILE1, column two contains lines unique to FILE2,\n\ +and column three contains lines common to both files.\n\ +"), stdout); + fputs (_("\ \n\ - -1 suppress lines unique to left file\n\ - -2 suppress lines unique to right file\n\ + -1 suppress lines unique to FILE1\n\ + -2 suppress lines unique to FILE2\n\ -3 suppress lines that appear in both files\n\ "), stdout); fputs (HELP_OPTION_DESCRIPTION, stdout); |