1UNIQ(1)                          User Commands                         UNIQ(1)
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NAME

6       uniq - report or omit repeated lines
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SYNOPSIS

9       uniq [OPTION]... [INPUT [OUTPUT]]
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DESCRIPTION

12       Discard  all but one of successive identical lines from INPUT (or stan‐
13       dard input), writing to OUTPUT (or standard output).
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15       Mandatory arguments to long options are  mandatory  for  short  options
16       too.
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18       -c, --count
19              prefix lines by the number of occurrences
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21       -d, --repeated
22              only print duplicate lines
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24       -D, --all-repeated[=delimit-method]
25              print              all              duplicate              lines
26              delimit-method={none(default),prepend,separate}  Delimiting   is
27              done with blank lines.
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29       -f, --skip-fields=N
30              avoid comparing the first N fields
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32       -i, --ignore-case
33              ignore differences in case when comparing
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35       -s, --skip-chars=N
36              avoid comparing the first N characters
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38       -u, --unique
39              only print unique lines
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41       -w, --check-chars=N
42              compare no more than N characters in lines
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44       --help display this help and exit
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46       --version
47              output version information and exit
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49       A field is a run of whitespace, then non-whitespace characters.  Fields
50       are skipped before chars.
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AUTHOR

53       Written by Richard Stallman and David MacKenzie.
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REPORTING BUGS

56       Report bugs to <bug-coreutils@gnu.org>.
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59       Copyright © 2007 Free Software Foundation, Inc.
60       This is free software.  You may redistribute copies  of  it  under  the
61       terms       of       the      GNU      General      Public      License
62       <http://www.gnu.org/licenses/gpl.html>.  There is NO WARRANTY,  to  the
63       extent permitted by law.
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SEE ALSO

66       The  full documentation for uniq is maintained as a Texinfo manual.  If
67       the info and uniq programs are properly installed  at  your  site,  the
68       command
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70              info uniq
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72       should give you access to the complete manual.
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76GNU coreutils 6.9                 March 2008                           UNIQ(1)
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