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author | Cameron Katri <me@cameronkatri.com> | 2021-05-09 14:20:58 -0400 |
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committer | Cameron Katri <me@cameronkatri.com> | 2021-05-09 14:20:58 -0400 |
commit | 5fd83771641d15c418f747bd343ba6738d3875f7 (patch) | |
tree | 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /text_cmds/uniq/uniq.1 | |
download | apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.gz apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.tar.zst apple_cmds-5fd83771641d15c418f747bd343ba6738d3875f7.zip |
Import macOS userland
adv_cmds-176
basic_cmds-55
bootstrap_cmds-116.100.1
developer_cmds-66
diskdev_cmds-667.40.1
doc_cmds-53.60.1
file_cmds-321.40.3
mail_cmds-35
misc_cmds-34
network_cmds-606.40.1
patch_cmds-17
remote_cmds-63
shell_cmds-216.60.1
system_cmds-880.60.2
text_cmds-106
Diffstat (limited to 'text_cmds/uniq/uniq.1')
-rw-r--r-- | text_cmds/uniq/uniq.1 | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/text_cmds/uniq/uniq.1 b/text_cmds/uniq/uniq.1 new file mode 100644 index 0000000..2baaee1 --- /dev/null +++ b/text_cmds/uniq/uniq.1 @@ -0,0 +1,151 @@ +.\" Copyright (c) 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" This code is derived from software contributed to Berkeley by +.\" the Institute of Electrical and Electronics Engineers, Inc. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" From: @(#)uniq.1 8.1 (Berkeley) 6/6/93 +.\" $FreeBSD: head/usr.bin/uniq/uniq.1 216370 2010-12-11 08:32:16Z joel $ +.\" +.Dd December 17, 2009 +.Dt UNIQ 1 +.Os +.Sh NAME +.Nm uniq +.Nd report or filter out repeated lines in a file +.Sh SYNOPSIS +.Nm +.Op Fl c | Fl d | Fl u +.Op Fl i +.Op Fl f Ar num +.Op Fl s Ar chars +.Oo +.Ar input_file +.Op Ar output_file +.Oc +.Sh DESCRIPTION +The +.Nm +utility reads the specified +.Ar input_file +comparing adjacent lines, and writes a copy of each unique input line to +the +.Ar output_file . +If +.Ar input_file +is a single dash +.Pq Sq Fl +or absent, the standard input is read. +If +.Ar output_file +is absent, standard output is used for output. +The second and succeeding copies of identical adjacent input lines are +not written. +Repeated lines in the input will not be detected if they are not adjacent, +so it may be necessary to sort the files first. +.Pp +The following options are available: +.Bl -tag -width Ds +.It Fl c +Precede each output line with the count of the number of times the line +occurred in the input, followed by a single space. +.It Fl d +Only output lines that are repeated in the input. +.It Fl f Ar num +Ignore the first +.Ar num +fields in each input line when doing comparisons. +A field is a string of non-blank characters separated from adjacent fields +by blanks. +Field numbers are one based, i.e., the first field is field one. +.It Fl s Ar chars +Ignore the first +.Ar chars +characters in each input line when doing comparisons. +If specified in conjunction with the +.Fl f +option, the first +.Ar chars +characters after the first +.Ar num +fields will be ignored. +Character numbers are one based, i.e., the first character is character one. +.It Fl u +Only output lines that are not repeated in the input. +.It Fl i +Case insensitive comparison of lines. +.\".It Fl Ns Ar n +.\"(Deprecated; replaced by +.\".Fl f ) . +.\"Ignore the first n +.\"fields on each input line when doing comparisons, +.\"where n is a number. +.\"A field is a string of non-blank +.\"characters separated from adjacent fields +.\"by blanks. +.\".It Cm \&\(pl Ns Ar n +.\"(Deprecated; replaced by +.\".Fl s ) . +.\"Ignore the first +.\".Ar m +.\"characters when doing comparisons, where +.\".Ar m +.\"is a +.\"number. +.El +.Sh ENVIRONMENT +The +.Ev LANG , +.Ev LC_ALL , +.Ev LC_COLLATE +and +.Ev LC_CTYPE +environment variables affect the execution of +.Nm +as described in +.Xr environ 7 . +.Sh EXIT STATUS +.Ex -std +.Sh COMPATIBILITY +The historic +.Cm \&\(pl Ns Ar number +and +.Fl Ns Ar number +options have been deprecated but are still supported in this implementation. +.Sh SEE ALSO +.Xr sort 1 +.Sh STANDARDS +The +.Nm +utility conforms to +.St -p1003.1-2001 +as amended by Cor.\& 1-2002. +.Sh HISTORY +A +.Nm +command appeared in +.At v3 . |