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| author | Pádraig Brady <P@draigBrady.com> | 2009-05-15 17:28:51 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2009-05-18 16:17:31 +0100 |
| commit | 39285f6008a26ff1d5facbffcbf12f57d60564d1 (patch) | |
| tree | 715b638eb04e0365d71e37bcbcd814a531425fac /src | |
| parent | b7f6e0d51680a6b5d5c992b59ddb403673ee4ae2 (diff) | |
| download | coreutils-39285f6008a26ff1d5facbffcbf12f57d60564d1.tar.xz | |
doc: clarify the operation of the comm -123 parameters
* src/comm.c (usage): give more information on the -123 parameters,
with examples to show that they can be combined.
Addresses <http://savannah.gnu.org/bugs/?24974>.
* doc/coreutils.texi (comm invocation): Mention that the
column separators are suppressed along with the column.
Suggestion from Dan Jacobson.
* man/comm.x: Reference other commands that match adjacent lines.
* man/join.x: ditto.
* man/uniq.x: ditto.
Diffstat (limited to 'src')
| -rw-r--r-- | src/comm.c | 13 |
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); |