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 standard 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} Delim-
iting 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 charac-
ters. Fields are skipped before chars.
AUTHOR
Written by Richard Stallman and David MacKenzie.
uniq 6.7 Last change: December 2006 1
User Commands UNIQ(1)
REPORTING BUGS
Report bugs to .
COPYRIGHT
Copyright O 2006 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it
under the terms of the GNU General Public License
. There is NO WAR-
RANTY, to the extent permitted by law.
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.
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWgnu-coreutils
Interface Stability Uncommitted
NOTES
Source for GNU coreutils is available on
http:/opensolaris.org.
uniq 6.7 Last change: December 2006 2
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