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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
+ "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
+
+<refentry id='revnetgroup'>
+ <refmeta>
+ <refentrytitle>revnetgroup</refentrytitle>
+ <manvolnum>8</manvolnum>
+ <refmiscinfo class='setdesc'>NIS Reference Manual</refmiscinfo>
+ </refmeta>
+
+ <refnamediv id='name'>
+ <refname>revnetgroup</refname>
+ <refpurpose>generate reverse netgroup data</refpurpose>
+ </refnamediv>
+
+<!-- body begins here -->
+
+ <refsynopsisdiv id='synopsis'>
+ <cmdsynopsis>
+ <command>/usr/lib/yp/revnetgroup</command>
+ <group>
+ <arg choice='plain'>-u</arg>
+ <arg choice='plain'>-h</arg>
+ </group>
+ </cmdsynopsis>
+ </refsynopsisdiv>
+
+
+ <refsect1 id='description'>
+ <title>DESCRIPTION</title>
+ <para>
+ <command>Revnetgroup</command>
+ processes the standard input in
+ <citerefentry><refentrytitle>netgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ format into what is called
+ <emphasis remap='I'>reverse netgroup</emphasis>
+ form. That is, where the original file shows netgroup memberships in
+ terms of which members reside in a particular
+ group, the reverse netgroup format specifies what groups are associated
+ with a particular member. This information is used to generate the
+ <filename>netgroup.byuser</filename>
+ and <filename>netgroup.byhosts</filename>
+ NIS maps. These reverse netgroup maps are used to help speed up
+ netgroup lookups, particularly for the
+ <function>innetgr()</function> library function.
+ </para>
+ <para>
+ The <command>revnetgroup</command>
+ command prints its results on the standard output. It is usually called
+ only by <filename>/var/yp/Makefile</filename>
+ when rebuilding the NIS netgroup maps.
+ </para>
+ </refsect1>
+
+ <refsect1 id='options'>
+ <title>OPTIONS</title>
+ <variablelist remap='TP'>
+ <varlistentry>
+ <term><option>-u</option></term>
+ <listitem>
+ <para>
+ Generate <filename>netgroup.byuser</filename>
+ output; only username information in the
+ original netgroup file is processed.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><option>-h</option></term>
+ <listitem>
+ <para>
+ Generate <filename>netgroup.byhost</filename>
+ output; only hostname information in the
+ original netgroup file is processed.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1 id='files'><title>FILES</title>
+ <variablelist>
+ <varlistentry>
+ <term><filename>/var/yp/Makefile</filename></term>
+ <listitem>
+ <para>The Makefile to build the NIS databases.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><filename>/etc/netgroup</filename></term>
+ <listitem>
+ <para>
+ The default netgroup database file. This file is most
+ often found only on the NIS master server.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+ <refsect1 id='see_also'>
+ <title>SEE ALSO</title>
+ <para>
+ <citerefentry><refentrytitle>getnetgrent</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>netgroup</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+ </para>
+ </refsect1>
+
+ <refsect1 id='author'>
+ <title>AUTHOR</title>
+ <para>
+ <command>revnetgroup</command> was written by
+ Thorsten Kukuk &lt;kukuk@linux-nis.org&gt;.
+ </para>
+ </refsect1>
+</refentry>