UNIQ(1)                  User Commands                  UNIQ(1)





NAME
       uniq - report or omit repeated lines

SYNOPSIS
       uniq [OPTION]... [INPUT [OUTPUT]]

DESCRIPTION
       Discard  all  but one of successive identical lines from
       INPUT (or standard input), writing to OUTPUT  (or  stan-
       dard output).

       Mandatory  arguments  to  long options are mandatory for
       short options too.

       -c, --count
              prefix lines by the number of occurrences

       -d, --repeated
              only print duplicate lines

       -D, --all-repeated[=delimit-method] print all  duplicate
       lines
              delimit-method={none(default),prepend,separate}
              Delimiting is done with blank lines.

       -f, --skip-fields=N
              avoid comparing the first N fields

       -i, --ignore-case
              ignore differences in case when comparing

       -s, --skip-chars=N
              avoid comparing the first N characters

       -u, --unique
              only print unique lines

       -w, --check-chars=N
              compare no more than N characters in lines

       --help display this help and exit

       --version
              output version information and exit

       A  field  is  a  run  of whitespace, then non-whitespace
       characters.  Fields are skipped before chars.

AUTHOR
       Written by Richard Stallman and David MacKenzie.

REPORTING BUGS
       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT
       Copyright (C) 2004 Free Software Foundation, Inc.
       This is free software; see the source for copying condi-
       tions.  There is NO warranty; not even for MERCHANTABIL-
       ITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO
       The full documentation for uniq is maintained as a  Tex-
       info manual.  If the info and uniq programs are properly
       installed at your site, the command

              info uniq

       should give you access to the complete manual.



uniq 5.3.0               December 2004                  UNIQ(1)