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-rw-r--r--src/comm.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/src/comm.c b/src/comm.c
index 3c5b09ad4..e37cf8875 100644
--- a/src/comm.c
+++ b/src/comm.c
@@ -114,9 +114,9 @@ and column three contains lines common to both files.\n\
"), stdout);
fputs (_("\
\n\
- -1 suppress lines unique to FILE1\n\
- -2 suppress lines unique to FILE2\n\
- -3 suppress lines that appear in both files\n\
+ -1 suppress column 1 (lines unique to FILE1)\n\
+ -2 suppress column 2 (lines unique to FILE2)\n\
+ -3 suppress column 3 (lines that appear in both files)\n\
"), stdout);
fputs (_("\
\n\
@@ -133,6 +133,13 @@ and column three contains lines common to both files.\n\
\n\
Note, comparisons honor the rules specified by `LC_COLLATE'.\n\
"), stdout);
+ printf (_("\
+\n\
+Examples:\n\
+ %s -12 file1 file2 Print only lines present in both file1 and file2.\n\
+ %s -3 file1 file2 Print lines in file1 not in file2, and vice versa.\n\
+"),
+ program_name, program_name);
emit_bug_reporting_address ();
}
exit (status);