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UNIQ

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO

NAME

uniq ? remove duplicate lines from a sorted file

SYNOPSIS

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

DESCRIPTION

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

?c, ??count

prefix lines by the number of occurrences

?d, ??repeated

only print duplicate lines

?D, ??all?repeated

print all duplicate 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

?N

same as ?f N

+N

same as ?s N

??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-textutils@gnu.org>.

COPYRIGHT

Copyright © 1999 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO

The full documentation for uniq is maintained as a Texinfo 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.


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