Filter adjacent matching lines from INPUT (or standard input),
writing to OUTPUT (or standard output).
With no options, matching lines are merged to the first occurrence.
Mandatory arguments to long options are mandatory for short options too.
A field is a run of blanks (usually spaces and/or TABs), then non-blank
characters. Fields are skipped before chars.
Note: ‘uniq’ does not detect repeated lines unless they are adjacent.
You may want to sort the input first, or use `sort -u‘ without `uniq’.
Also, comparisons honor the rules specified by `LC_COLLATE’.
Report uniq bugs to [email protected]
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report uniq translation bugs to <http://translationproject.org/team/>
Copyright © 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
The full documentation for
is maintained as a Texinfo manual. If the
programs are properly installed at your site, the command
should give you access to the complete manual.