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<title>uniq(1) - Plan 9 from User Space</title>
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<tr><td width=20><td><b>UNIQ(1)</b><td align=right><b>UNIQ(1)</b>
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<p><font size=+1><b>NAME </b></font><br>
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uniq – report repeated lines in a file<br>
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<p><font size=+1><b>SYNOPSIS </b></font><br>
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<tt><font size=+1>uniq</font></tt> [ <tt><font size=+1>−udc</font></tt> [ <tt><font size=+1>+−</font></tt><i>num</i> ] ] [ <i>file</i> ]<br>
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<p><font size=+1><b>DESCRIPTION </b></font><br>
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<i>Uniq</i> copies the input <i>file</i>, or the standard input, to the standard
output, comparing adjacent lines. In the normal case, the second
and succeeding copies of repeated lines are removed. Repeated
lines must be adjacent in order to be found.<br>
<tt><font size=+1>−u</font></tt> Print unique lines.<br>
<tt><font size=+1>−d</font></tt> Print (one copy of) duplicated lines.<br>
<tt><font size=+1>−c</font></tt> Prefix a repetition count and a tab to each output line. Implies
<tt><font size=+1>−u</font></tt> and <tt><font size=+1>−d</font></tt>.<br>
<tt><font size=+1>−</font></tt><i>num</i>The first <i>num</i> fields together with any blanks before each
are ignored. A field is defined as a string of non-space, non-tab
characters separated by tabs and spaces from its neighbors.<br>
<tt><font size=+1>+</font></tt><i>num</i>The first <i>num</i> characters are ignored. Fields are skipped before
characters.<br>
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<p><font size=+1><b>SOURCE </b></font><br>
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<tt><font size=+1>/usr/local/plan9/src/cmd/uniq.c<br>
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<p><font size=+1><b>SEE ALSO </b></font><br>
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<a href="../man1/sort.html"><i>sort</i>(1)</a><br>
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<p><font size=+1><b>BUGS </b></font><br>
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Field selection and comparison should be compatible with <a href="../man1/sort.html"><i>sort</i>(1)</a>.<br>
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