| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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| 7 |
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| 8 | <sect1 id="ch-system-man-db" role="wrap">
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| 9 | <?dbhtml filename="man-db.html"?>
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| 10 |
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| 11 | <title>Man-DB-&man-db-version;</title>
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| 12 |
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| 13 | <indexterm zone="ch-system-man-db">
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| 14 | <primary sortas="a-Man-DB">Man-DB</primary>
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| 15 | </indexterm>
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| 16 |
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| 17 | <sect2 role="package">
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| 18 | <title/>
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| 19 |
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| 20 | <para>The Man-DB package contains programs for finding and viewing man
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| 21 | pages.</para>
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| 22 |
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| 23 | <segmentedlist>
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| 24 | <segtitle>&buildtime;</segtitle>
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| 25 | <segtitle>&diskspace;</segtitle>
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| 26 |
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| 27 | <seglistitem>
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| 28 | <seg>&man-db-ch6-sbu;</seg>
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| 29 | <seg>&man-db-ch6-du;</seg>
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| 30 | </seglistitem>
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| 31 | </segmentedlist>
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| 32 |
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| 33 | </sect2>
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| 34 |
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| 35 | <sect2 role="installation">
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| 36 | <title>Installation of Man-DB</title>
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| 37 |
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| 38 | <para>Four adjustments need to be made to the sources of Man-DB.</para>
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| 39 |
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| 40 | <para>The first one changes the location of translated manual pages that come
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| 41 | with Man-DB, in order for them to be accessible in both traditional and
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| 42 | UTF-8 locales:</para>
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| 43 |
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| 44 | <screen><userinput>mv man/de{_DE.88591,}
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| 45 | mv man/es{_ES.88591,}
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| 46 | mv man/it{_IT.88591,}
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| 47 | mv man/ja{_JP.eucJP,}
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| 48 | sed -i 's,\*_\*,??,' man/Makefile.in</userinput></screen>
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| 49 |
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| 50 | <para>The second change is a <command>sed</command> substitution to delete
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| 51 | the <quote>/usr/man</quote> and <quote>/usr/local/man</quote> lines in
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| 52 | the <filename>man_db.conf</filename> file to prevent redundant results
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| 53 | when using programs such as <command>whatis</command>:</para>
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| 54 |
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| 55 | <screen><userinput>sed -i -e '\%\t/usr/man%d' -e '\%\t/usr/local/man%d' src/man_db.conf.in</userinput></screen>
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| 56 |
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| 57 | <para>The third change accounts for programs that Man-DB should be able
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| 58 | to find at runtime, but that haven't been installed yet:</para>
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| 59 |
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| 60 | <screen><userinput>cat >> include/manconfig.h.in << "EOF"
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| 61 | <literal>#define WEB_BROWSER "exec /usr/bin/lynx"
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| 62 | #define COL "/usr/bin/col"
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| 63 | #define VGRIND "/usr/bin/vgrind"
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| 64 | #define GRAP "/usr/bin/grap"</literal>
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| 65 | EOF</userinput></screen>
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| 66 |
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| 67 | <para>The <command>col</command> program is a part of the Util-linux
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| 68 | package, <command>lynx</command> is a text-based web browser (see BLFS
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| 69 | for installation instructions), <command>vgrind</command> converts
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| 70 | program sources to Groff input, and <command>grap</command> is useful
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| 71 | for typesetting graphs in Groff documents. The <command>vgrind</command>
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| 72 | and <command>grap</command> programs are not normally needed for viewing
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| 73 | manual pages. They are not part of LFS or BLFS, but you should be able
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| 74 | to install them yourself after finishing LFS if you wish to do so.</para>
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| 75 |
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| 76 | <para>Finally, patch the sources to fix output errors if the man page is
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| 77 | prematurely aborted by pressing the 'q' key.</para>
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| 78 |
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| 79 | <screen><userinput>patch -Np1 -i ../&man-db-fixes-patch;</userinput></screen>
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| 80 |
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| 81 | <para>Prepare Man-DB for compilation:</para>
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| 82 |
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| 83 | <screen><userinput>./configure --prefix=/usr --enable-mb-groff --disable-setuid</userinput></screen>
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| 84 |
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| 85 | <variablelist>
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| 86 | <title>The meaning of the configure options:</title>
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| 87 |
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| 88 | <varlistentry>
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| 89 | <term><parameter>--enable-mb-groff</parameter></term>
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| 90 | <listitem>
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| 91 | <para>This tells the <command>man</command> program to use the
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| 92 | <quote>ascii8</quote> and <quote>nippon</quote> Groff devices for
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| 93 | formatting non-ISO-8859-1 manual pages.</para>
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| 94 | </listitem>
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| 95 | </varlistentry>
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| 96 |
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| 97 | <varlistentry>
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| 98 | <term><parameter>--disable-setuid</parameter></term>
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| 99 | <listitem>
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| 100 | <para>This disables making the <command>man</command> program setuid
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| 101 | to user <systemitem class="username">man</systemitem>.</para>
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| 102 | </listitem>
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| 103 | </varlistentry>
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| 104 |
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| 105 | </variablelist>
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| 106 |
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| 107 | <para>Compile the package:</para>
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| 108 |
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| 109 | <screen><userinput>make</userinput></screen>
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| 110 |
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| 111 | <para>This package does not come with a test suite.</para>
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| 112 |
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| 113 | <para>Install the package:</para>
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| 114 |
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| 115 | <screen><userinput>make install</userinput></screen>
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| 116 |
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| 117 | <para>Some packages provide UTF-8 man pages which this version of
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| 118 | <command>man</command> is unable to display. The following script will
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| 119 | allow some of these to be converted into the expected encodings shown in
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| 120 | the table below. Man-DB expects the manual pages to be in the encodings
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| 121 | in the table, and will convert them as necessary to the actual locale
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| 122 | encoding when it displays them, so that they will display in both UTF-8
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| 123 | and traditional locales. Because this script is intended for limited use
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| 124 | during the system build, for public data, we will not bother with error
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| 125 | checking, nor use a non-predictable temporary file name:</para>
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| 126 |
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| 127 | <screen><userinput>cat >> convert-mans << "EOF"
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| 128 | <literal>#!/bin/sh -e
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| 129 | FROM="$1"
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| 130 | TO="$2"
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| 131 | shift ; shift
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| 132 | while [ $# -gt 0 ]
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| 133 | do
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| 134 | FILE="$1"
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| 135 | shift
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| 136 | iconv -f "$FROM" -t "$TO" "$FILE" >.tmp.iconv
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| 137 | mv .tmp.iconv "$FILE"
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| 138 | done</literal>
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| 139 | EOF
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| 140 | install -m755 convert-mans /usr/bin</userinput></screen>
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| 141 |
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| 142 | <para>Additional information regarding the compression of
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| 143 | man and info pages can be found in the BLFS book at
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| 144 | <ulink url="&blfs-root;view/cvs/postlfs/compressdoc.html"/>.</para>
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| 145 |
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| 146 | </sect2>
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| 147 |
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| 148 | <sect2>
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| 149 | <title>Non-English Manual Pages in LFS</title>
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| 150 |
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| 151 | <para>Linux distributions have different policies concerning the character
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| 152 | encoding in which manual pages are stored in the filesystem. E.g., RedHat
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| 153 | stores all manual pages in UTF-8, while Debian uses language-specific
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| 154 | (mostly 8-bit) encodings. This leads to incompatibility of packages with
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| 155 | manual pages designed for different distributions.</para>
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| 156 |
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| 157 | <para>LFS uses the same conventions as Debian. This was chosen because
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| 158 | Man-DB does not understand man pages stored in UTF-8. And, for our
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| 159 | purposes, Man-DB is preferable to Man as it works without extra
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| 160 | configuration in any locale. Lastly, as of now, there is no fully-working
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| 161 | implementation of the RedHat convention. RedHat's <command>groff</command>
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| 162 | is known to misformat text.</para>
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| 163 |
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| 164 | <para>The relationship between language codes and the expected encoding
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| 165 | of manual pages is listed below. Man-DB automatically converts them to
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| 166 | the locale encoding while viewing.</para>
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| 167 |
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| 168 | <!-- Origin: man-db-2.4.3/src/encodings.c -->
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| 169 | <table>
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| 170 | <title>Expected character encoding of manual pages</title>
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| 171 | <?dbfo table-width="2.5in" ?>
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| 172 |
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| 173 | <tgroup cols="2">
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| 174 |
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| 175 | <colspec colnum="1" colwidth="1.5in"/>
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| 176 | <colspec colnum="2" colwidth="1in"/>
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| 177 |
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| 178 | <thead>
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| 179 | <row>
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| 180 | <entry>Language (code)</entry>
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| 181 | <entry>Encoding</entry>
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| 182 | </row>
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| 183 | </thead>
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| 184 |
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| 185 | <tbody>
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| 186 | <row>
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| 187 | <entry>Danish (da)</entry>
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| 188 | <entry>ISO-8859-1</entry>
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| 189 | </row>
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| 190 | <row>
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| 191 | <entry>German (de)</entry>
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| 192 | <entry>ISO-8859-1</entry>
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| 193 | </row>
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| 194 | <row>
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| 195 | <entry>English (en)</entry>
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| 196 | <entry>ISO-8859-1</entry>
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| 197 | </row>
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| 198 | <row>
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| 199 | <entry>Spanish (es)</entry>
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| 200 | <entry>ISO-8859-1</entry>
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| 201 | </row>
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| 202 | <row>
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| 203 | <entry>Finnish (fi)</entry>
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| 204 | <entry>ISO-8859-1</entry>
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| 205 | </row>
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| 206 | <row>
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| 207 | <entry>French (fr)</entry>
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| 208 | <entry>ISO-8859-1</entry>
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| 209 | </row>
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| 210 | <row>
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| 211 | <entry>Irish (ga)</entry>
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| 212 | <entry>ISO-8859-1</entry>
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| 213 | </row>
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| 214 | <row>
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| 215 | <entry>Galician (gl)</entry>
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| 216 | <entry>ISO-8859-1</entry>
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| 217 | </row>
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| 218 | <row>
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| 219 | <entry>Indonesian (id)</entry>
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| 220 | <entry>ISO-8859-1</entry>
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| 221 | </row>
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| 222 | <row>
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| 223 | <entry>Icelandic (is)</entry>
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| 224 | <entry>ISO-8859-1</entry>
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| 225 | </row>
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| 226 | <row>
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| 227 | <entry>Italian (it)</entry>
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| 228 | <entry>ISO-8859-1</entry>
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| 229 | </row>
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| 230 | <row>
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| 231 | <entry>Dutch (nl)</entry>
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| 232 | <entry>ISO-8859-1</entry>
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| 233 | </row>
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| 234 | <!-- FIXME: BUG: "no" is deprecated, should use "nb" or "nn" and
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| 235 | symlinks -->
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| 236 | <row>
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| 237 | <entry>Norwegian (no)</entry>
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| 238 | <entry>ISO-8859-1</entry>
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| 239 | </row>
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| 240 | <!-- END BUG -->
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| 241 | <row>
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| 242 | <entry>Portuguese (pt)</entry>
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| 243 | <entry>ISO-8859-1</entry>
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| 244 | </row>
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| 245 | <row>
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| 246 | <entry>Swedish (sv)</entry>
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| 247 | <entry>ISO-8859-1</entry>
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| 248 | </row>
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| 249 | <!-- Languages below require patched groff -->
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| 250 | <row>
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| 251 | <entry>Czech (cs)</entry>
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| 252 | <entry>ISO-8859-2</entry>
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| 253 | </row>
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| 254 | <row>
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| 255 | <entry>Croatian (hr)</entry>
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| 256 | <entry>ISO-8859-2</entry>
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| 257 | </row>
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| 258 | <row>
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| 259 | <entry>Hungarian (hu)</entry>
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| 260 | <entry>ISO-8859-2</entry>
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| 261 | </row>
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| 262 | <row>
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| 263 | <entry>Japanese (ja)</entry>
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| 264 | <entry>EUC-JP</entry>
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| 265 | </row>
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| 266 | <row>
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| 267 | <entry>Korean (ko)</entry>
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| 268 | <entry>EUC-KR</entry>
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| 269 | </row>
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| 270 | <row>
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| 271 | <entry>Polish (pl)</entry>
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| 272 | <entry>ISO-8859-2</entry>
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| 273 | </row>
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| 274 | <row>
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| 275 | <entry>Russian (ru)</entry>
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| 276 | <entry>KOI8-R</entry>
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| 277 | </row>
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| 278 | <row>
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| 279 | <entry>Slovak (sk)</entry>
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| 280 | <entry>ISO-8859-2</entry>
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| 281 | </row>
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| 282 | <row>
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| 283 | <entry>Turkish (tr)</entry>
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| 284 | <entry>ISO-8859-9</entry>
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| 285 | </row>
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| 286 | </tbody>
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| 287 |
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| 288 | </tgroup>
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| 289 |
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| 290 | </table>
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| 291 |
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| 292 | <note>
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| 293 | <para>Manual pages in languages not in the list are not supported.
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| 294 | Norwegian doesn't work now because of the transition from no_NO to
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| 295 | nb_NO locale, and Korean is non-functional because of the incomplete
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| 296 | Groff patch.</para>
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| 297 | </note>
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| 298 |
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| 299 | <para>If upstream distributes the manual pages in the same encoding
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| 300 | as Man-DB expects, the manual pages can be copied to
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| 301 | <filename class="directory">/usr/share/man/<replaceable><language
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| 302 | code></replaceable></filename>. E.g., French manual pages
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| 303 | (<ulink url="http://ccb.club.fr/man/man-fr-1.58.0.tar.bz2"/>) can be
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| 304 | installed with the following command:</para>
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| 305 |
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| 306 | <screen role="nodump"><userinput>mkdir -p /usr/share/man/fr
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| 307 | cp -rv man? /usr/share/man/fr</userinput></screen>
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| 308 |
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| 309 | <para>If upstream distributes manual pages in UTF-8 (i.e., <quote>for
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| 310 | RedHat</quote>) instead of the encoding listed in the table above, they
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| 311 | have to be converted from UTF-8 to the encoding listed in the table before
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| 312 | installation. This can be achieved with <command>convert-mans</command>,
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| 313 | e.g., Spanish manual pages (<ulink
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| 314 | url="http://ditec.um.es/~piernas/manpages-es/man-pages-es-1.55.tar.bz2"/>)
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| 315 | can be installed with the following commands:</para>
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| 316 |
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| 317 | <screen role="nodump"><userinput>mv man7/iso_8859-7.7{,X}
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| 318 | convert-mans UTF-8 ISO-8859-1 man?/*.?
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| 319 | mv man7/iso_8859-7.7{X,}
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| 320 | make install</userinput></screen>
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| 321 |
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| 322 | <note>
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| 323 | <para>The need to exclude the <filename>man7/iso_8859-7.7</filename> file
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| 324 | from the conversion process because it is already in ISO-8859-1 is a
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| 325 | packaging bug in man-pages-es-1.55. Future versions should not require
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| 326 | this workaround.</para>
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| 327 | </note>
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| 328 |
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| 329 | </sect2>
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| 330 |
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| 331 | <sect2 id="contents-man-db" role="content">
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| 332 | <title>Contents of Man-DB</title>
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| 333 |
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| 334 | <segmentedlist>
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| 335 | <segtitle>Installed programs</segtitle>
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| 336 |
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| 337 | <seglistitem>
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| 338 | <seg>accessdb, apropos, catman, convert-mans,lexgrog, man, mandb,
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| 339 | manpath, whatis, and zsoelim</seg>
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| 340 | </seglistitem>
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| 341 | </segmentedlist>
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| 342 |
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| 343 | <variablelist>
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| 344 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 345 | <?dbfo list-presentation="list"?>
|
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| 346 | <?dbhtml list-presentation="table"?>
|
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| 347 |
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| 348 | <varlistentry id="accessdb">
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| 349 | <term><command>accessdb</command></term>
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| 350 | <listitem>
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| 351 | <para>Dumps the <command>whatis</command> database contents in
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| 352 | human-readable form</para>
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| 353 | <indexterm zone="ch-system-man-db accessdb">
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| 354 | <primary sortas="b-accessdb">accessdb</primary>
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| 355 | </indexterm>
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| 356 | </listitem>
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| 357 | </varlistentry>
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| 358 |
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| 359 | <varlistentry id="apropos">
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| 360 | <term><command>apropos</command></term>
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| 361 | <listitem>
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| 362 | <para>Searches the <command>whatis</command> database and displays
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| 363 | the short descriptions of system commands that contain a given
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| 364 | string</para>
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| 365 | <indexterm zone="ch-system-man-db apropos">
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| 366 | <primary sortas="b-apropos">apropos</primary>
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| 367 | </indexterm>
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| 368 | </listitem>
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| 369 | </varlistentry>
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| 370 |
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| 371 | <varlistentry id="catman">
|
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| 372 | <term><command>catman</command></term>
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| 373 | <listitem>
|
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| 374 | <para>Creates or updates the pre-formatted manual pages</para>
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|---|
| 375 | <indexterm zone="ch-system-man-db catman">
|
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| 376 | <primary sortas="b-catman">catman</primary>
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| 377 | </indexterm>
|
|---|
| 378 | </listitem>
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|---|
| 379 | </varlistentry>
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| 380 |
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| 381 | <varlistentry id="convert-mans">
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| 382 | <term><command>convert-mans</command></term>
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|---|
| 383 | <listitem>
|
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| 384 | <para>Reformat man pages so that Man-DB can display them</para>
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|---|
| 385 | <indexterm zone="ch-system-man-db convert-mans">
|
|---|
| 386 | <primary sortas="b-convert-mans">convert-mans</primary>
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|---|
| 387 | </indexterm>
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|---|
| 388 | </listitem>
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|---|
| 389 | </varlistentry>
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| 390 |
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| 391 | <varlistentry id="lexgrog">
|
|---|
| 392 | <term><command>lexgrog</command></term>
|
|---|
| 393 | <listitem>
|
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| 394 | <para>Displays one-line summary information about a given manual
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| 395 | page</para>
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| 396 | <indexterm zone="ch-system-man-db lexgrog">
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| 397 | <primary sortas="b-lexgrog">lexgrog</primary>
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| 398 | </indexterm>
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| 399 | </listitem>
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| 400 | </varlistentry>
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| 401 |
|
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| 402 | <varlistentry id="man">
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| 403 | <term><command>man</command></term>
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| 404 | <listitem>
|
|---|
| 405 | <para>Formats and displays the requested manual page</para>
|
|---|
| 406 | <indexterm zone="ch-system-man-db man">
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| 407 | <primary sortas="b-man">man</primary>
|
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| 408 | </indexterm>
|
|---|
| 409 | </listitem>
|
|---|
| 410 | </varlistentry>
|
|---|
| 411 |
|
|---|
| 412 | <varlistentry id="mandb">
|
|---|
| 413 | <term><command>mandb</command></term>
|
|---|
| 414 | <listitem>
|
|---|
| 415 | <para>Creates or updates the <command>whatis</command> database</para>
|
|---|
| 416 | <indexterm zone="ch-system-man-db mandb">
|
|---|
| 417 | <primary sortas="b-mandb">mandb</primary>
|
|---|
| 418 | </indexterm>
|
|---|
| 419 | </listitem>
|
|---|
| 420 | </varlistentry>
|
|---|
| 421 |
|
|---|
| 422 | <varlistentry id="manpath">
|
|---|
| 423 | <term><command>manpath</command></term>
|
|---|
| 424 | <listitem>
|
|---|
| 425 | <para>Displays the contents of $MANPATH or (if $MANPATH is not set)
|
|---|
| 426 | a suitable search path based on the settings in man.conf and the
|
|---|
| 427 | user's environment</para>
|
|---|
| 428 | <indexterm zone="ch-system-man-db manpath">
|
|---|
| 429 | <primary sortas="b-manpath">manpath</primary>
|
|---|
| 430 | </indexterm>
|
|---|
| 431 | </listitem>
|
|---|
| 432 | </varlistentry>
|
|---|
| 433 |
|
|---|
| 434 | <varlistentry id="whatis">
|
|---|
| 435 | <term><command>whatis</command></term>
|
|---|
| 436 | <listitem>
|
|---|
| 437 | <para>Searches the <command>whatis</command> database and displays
|
|---|
| 438 | the short descriptions of system commands that contain the given
|
|---|
| 439 | keyword as a separate word</para>
|
|---|
| 440 | <indexterm zone="ch-system-man-db whatis">
|
|---|
| 441 | <primary sortas="b-whatis">whatis</primary>
|
|---|
| 442 | </indexterm>
|
|---|
| 443 | </listitem>
|
|---|
| 444 | </varlistentry>
|
|---|
| 445 |
|
|---|
| 446 | <varlistentry id="zsoelim">
|
|---|
| 447 | <term><command>zsoelim</command></term>
|
|---|
| 448 | <listitem>
|
|---|
| 449 | <para>Reads files and replaces lines of the form <emphasis>.so
|
|---|
| 450 | file</emphasis> by the contents of the mentioned
|
|---|
| 451 | <emphasis>file</emphasis></para>
|
|---|
| 452 | <indexterm zone="ch-system-man-db zsoelim">
|
|---|
| 453 | <primary sortas="b-zsoelim">zsoelim</primary>
|
|---|
| 454 | </indexterm>
|
|---|
| 455 | </listitem>
|
|---|
| 456 | </varlistentry>
|
|---|
| 457 |
|
|---|
| 458 | </variablelist>
|
|---|
| 459 |
|
|---|
| 460 | </sect2>
|
|---|
| 461 |
|
|---|
| 462 | </sect1>
|
|---|
