125 lines
4.0 KiB
HTML
125 lines
4.0 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of UNIQ</TITLE>
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</HEAD><BODY>
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<H1>UNIQ</H1>
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Section: User Commands (1)<BR>Updated: September 2019<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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uniq - report or omit repeated lines
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<B>uniq</B>
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[<I>,OPTION/</I>]... [<I>,INPUT /</I>[<I>,OUTPUT/</I>]]
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<P>
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Filter adjacent matching lines from INPUT (or standard input),
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writing to OUTPUT (or standard output).
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<P>
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With no options, matching lines are merged to the first occurrence.
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<P>
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Mandatory arguments to long options are mandatory for short options too.
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<DL COMPACT>
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<DT id="1"><B>-c</B>, <B>--count</B><DD>
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prefix lines by the number of occurrences
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<DT id="2"><B>-d</B>, <B>--repeated</B><DD>
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only print duplicate lines, one for each group
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<DT id="3"><B>-D</B><DD>
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print all duplicate lines
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<DT id="4"><B>--all-repeated</B>[=<I>,METHOD/</I>]<DD>
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like <B>-D</B>, but allow separating groups
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with an empty line;
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METHOD={none(default),prepend,separate}
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<DT id="5"><B>-f</B>, <B>--skip-fields</B>=<I>,N/</I><DD>
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avoid comparing the first N fields
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<DT id="6"><B>--group</B>[=<I>,METHOD/</I>]<DD>
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show all items, separating groups with an empty line;
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METHOD={separate(default),prepend,append,both}
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<DT id="7"><B>-i</B>, <B>--ignore-case</B><DD>
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ignore differences in case when comparing
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<DT id="8"><B>-s</B>, <B>--skip-chars</B>=<I>,N/</I><DD>
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avoid comparing the first N characters
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<DT id="9"><B>-u</B>, <B>--unique</B><DD>
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only print unique lines
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<DT id="10"><B>-z</B>, <B>--zero-terminated</B><DD>
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line delimiter is NUL, not newline
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<DT id="11"><B>-w</B>, <B>--check-chars</B>=<I>,N/</I><DD>
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compare no more than N characters in lines
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<DT id="12"><B>--help</B><DD>
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display this help and exit
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<DT id="13"><B>--version</B><DD>
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output version information and exit
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</DL>
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<P>
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A field is a run of blanks (usually spaces and/or TABs), then non-blank
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characters. Fields are skipped before chars.
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<P>
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Note: 'uniq' does not detect repeated lines unless they are adjacent.
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You may want to sort the input first, or use 'sort <B>-u</B>' without 'uniq'.
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Also, comparisons honor the rules specified by 'LC_COLLATE'.
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<A NAME="lbAE"> </A>
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<H2>AUTHOR</H2>
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Written by Richard M. Stallman and David MacKenzie.
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<A NAME="lbAF"> </A>
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<H2>REPORTING BUGS</H2>
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GNU coreutils online help: <<A HREF="https://www.gnu.org/software/coreutils/">https://www.gnu.org/software/coreutils/</A>>
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<BR>
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Report uniq translation bugs to <<A HREF="https://translationproject.org/team/">https://translationproject.org/team/</A>>
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<A NAME="lbAG"> </A>
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<H2>COPYRIGHT</H2>
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Copyright © 2018 Free Software Foundation, Inc.
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License GPLv3+: GNU GPL version 3 or later <<A HREF="https://gnu.org/licenses/gpl.html">https://gnu.org/licenses/gpl.html</A>>.
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<BR>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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<A NAME="lbAH"> </A>
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<H2>SEE ALSO</H2>
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<A HREF="/cgi-bin/man/man2html?1+comm">comm</A>(1), <A HREF="/cgi-bin/man/man2html?1+join">join</A>(1), <A HREF="/cgi-bin/man/man2html?1+sort">sort</A>(1)
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<P>
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<BR>
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Full documentation at: <<A HREF="https://www.gnu.org/software/coreutils/uniq">https://www.gnu.org/software/coreutils/uniq</A>>
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<BR>
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or available locally via: info '(coreutils) uniq invocation'
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="14"><A HREF="#lbAB">NAME</A><DD>
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<DT id="15"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="16"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="17"><A HREF="#lbAE">AUTHOR</A><DD>
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<DT id="18"><A HREF="#lbAF">REPORTING BUGS</A><DD>
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<DT id="19"><A HREF="#lbAG">COPYRIGHT</A><DD>
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<DT id="20"><A HREF="#lbAH">SEE ALSO</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:29 GMT, March 31, 2021
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</BODY>
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</HTML>
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