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UNIQ(1)				 User Commands			       UNIQ(1)

NAME
       uniq - report or	omit repeated lines

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

DESCRIPTION
       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.

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

       -d, --repeated
	      only print duplicate lines, one for each group

       -D     print all	duplicate lines

       --all-repeated[=METHOD]
	      like  -D,	 but  allow  separating	 groups	 with  an  empty line;
	      METHOD={none(default),prepend,separate}

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

       --group[=METHOD]
	      show  all	 items,	 separating  groups  with   an	 empty	 line;
	      METHOD={separate(default),prepend,append,both}

       -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

       -z, --zero-terminated
	      line delimiter is	NUL, not newline

       -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 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'.

AUTHOR
       Written by Richard M. Stallman and David	MacKenzie.

REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT
       Copyright  (C) 2020 Free	Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or	later <https://gnu.org/licenses/gpl.html>.
       This is free software: you are free  to	change	and  redistribute  it.
       There is	NO WARRANTY, to	the extent permitted by	law.

SEE ALSO
       comm(1),	join(1), sort(1)

       Full documentation <https://www.gnu.org/software/coreutils/uniq>
       or available locally via: info '(coreutils) uniq	invocation'

GNU coreutils 8.32		  March	2020			       UNIQ(1)

NAME | SYNOPSIS | DESCRIPTION | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO

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