lfs-book/chapter06/man-db.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../general.ent">
  %general-entities;
]>

<sect1 id="ch-system-man-db" role="wrap">
  <?dbhtml filename="man-db.html"?>

  <sect1info condition="script">
    <productname>man-db</productname>
    <productnumber>&man-db-version;</productnumber>
    <address>&man-db-url;</address>
  </sect1info>

  <title>Man-DB-&man-db-version;</title>

  <indexterm zone="ch-system-man-db">
    <primary sortas="a-Man-DB">Man-DB</primary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <para>The Man-DB package contains programs for finding and viewing man
    pages.</para>

    <segmentedlist>
      <segtitle>&buildtime;</segtitle>
      <segtitle>&diskspace;</segtitle>

      <seglistitem>
        <seg>&man-db-ch6-sbu;</seg>
        <seg>&man-db-ch6-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Man-DB</title>

    <para>Prepare Man-DB for compilation:</para>

<screen revision="systemd"><userinput remap="configure">sed -i '/find/s@/usr@@' init/systemd/man-db.service.in

./configure --prefix=/usr                        \
            --docdir=/usr/share/doc/man-db-&man-db-version; \
            --sysconfdir=/etc                    \
            --disable-setuid                     \
            --enable-cache-owner=bin             \
            --with-browser=/usr/bin/lynx         \
            --with-vgrind=/usr/bin/vgrind        \
            --with-grap=/usr/bin/grap</userinput></screen>

<screen revision="sysv"><userinput remap="configure">./configure --prefix=/usr                        \
            --docdir=/usr/share/doc/man-db-&man-db-version; \
            --sysconfdir=/etc                    \
            --disable-setuid                     \
            --enable-cache-owner=bin             \
            --with-browser=/usr/bin/lynx         \
            --with-vgrind=/usr/bin/vgrind        \
            --with-grap=/usr/bin/grap            \
            --with-systemdtmpfilesdir=           \
            --with-systemdsystemunitdir=</userinput></screen>

    <variablelist>
      <title>The meaning of the configure options:</title>

      <varlistentry revision="systemd">
        <term><command>sed -i '/find/s@/usr@@' init/systemd/man-db.service.in</command></term>
        <listitem>
          <para>This changes a harcoded path to the <command>find</command>
          utility, which we install in
          <filename class="directory">/bin</filename>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>--disable-setuid</parameter></term>
        <listitem>
          <para>This disables making the <command>man</command> program setuid
          to user <systemitem class="username">man</systemitem>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>--enable-cache-owner=bin</parameter></term>
        <listitem>
          <para>This makes the system-wide cache files be owned by user
          bin.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>--with-...</parameter></term>
        <listitem>
          <para>These three parameters are used to set some default programs.
          <command>lynx</command> is a text-based web browser (see
          BLFS for installation instructions), <command>vgrind</command>
          converts program sources to Groff input, and <command>grap</command>
          is useful for typesetting graphs in Groff documents. The
          <command>vgrind</command> and <command>grap</command> programs are
          not normally needed for viewing manual pages. They are not part of
          LFS or BLFS, but you should be able to install them yourself after
          finishing LFS if you wish to do so.</para>
        </listitem>
      </varlistentry>

      <varlistentry revision="sysv">
        <term><parameter>--with-systemd...</parameter></term>
        <listitem>
          <para>These parameters prevent installing unneeded systemd 
          directories and files.</para>
        </listitem>
      </varlistentry>

    </variablelist>

    <para>Compile the package:</para>

<screen><userinput remap="make">make</userinput></screen>

   <para>To test the results, issue:</para>

<screen><userinput remap="test">make check</userinput></screen>

    <para>Install the package:</para>

<screen><userinput remap="install">make install</userinput></screen>
<!--
    <para revision="sysv">Remove an unwanted directory used for service files
    which would cause some BLFS packages to also install files there: </para>

<screen revision="sysv"><userinput remap="install">rm -rfv /lib/systemd</userinput></screen>

    <para revision="systemd">Remove a reference to a non-existent user:</para>

<screen revision="systemd"><userinput remap="install">sed -i "s:man man:root root:g" /usr/lib/tmpfiles.d/man-db.conf</userinput></screen>
-->
  </sect2>

  <sect2>
    <title>Non-English Manual Pages in LFS</title>

    <para>The following table shows the character set that Man-DB assumes
    manual pages installed under
    <filename class="directory">/usr/share/man/&lt;ll&gt;</filename> will be
    encoded with.  In addition to this, Man-DB correctly determines if manual
    pages installed in that directory are UTF-8 encoded.</para>

    <!-- Origin: man-db-2.5.9/lib/encodings.c -->
    <table>
<title>Expected character encoding of legacy 8-bit manual pages</title>
      <?dbfo table-width="6in" ?>

      <tgroup cols="4">

        <colspec colnum="1" colwidth="1.5in"/>
        <colspec colnum="2" colwidth="1in"/>
        <colspec colnum="3" colwidth="2.5in"/>
        <colspec colnum="4" colwidth="1in"/>

        <thead>
          <row>
            <entry>Language (code)</entry>
            <entry>Encoding</entry>
            <entry>Language (code)</entry>
            <entry>Encoding</entry>
          </row>
        </thead>

        <tbody>
          <row>
            <entry>Danish (da)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Croatian (hr)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>German (de)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Hungarian (hu)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>English (en)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Japanese (ja)</entry>
            <entry>EUC-JP</entry>
          </row>
          <row>
            <entry>Spanish (es)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Korean (ko)</entry>
            <entry>EUC-KR</entry>
          </row>
          <row>
            <entry>Estonian (et)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Lithuanian (lt)</entry>
            <entry>ISO-8859-13</entry>
          </row>
          <row>
            <entry>Finnish (fi)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Latvian (lv)</entry>
            <entry>ISO-8859-13</entry>
          </row>
          <row>
            <entry>French (fr)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Macedonian (mk)</entry>
            <entry>ISO-8859-5</entry>
          </row>
          <row>
            <entry>Irish (ga)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Polish (pl)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>Galician (gl)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Romanian (ro)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>Indonesian (id)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Russian (ru)</entry>
            <entry>KOI8-R</entry>
          </row>
          <row>
            <entry>Icelandic (is)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Slovak (sk)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>Italian (it)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Slovenian (sl)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>Norwegian Bokmal (nb)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Serbian Latin (sr@latin)</entry>
            <entry>ISO-8859-2</entry>
          </row>
          <row>
            <entry>Dutch (nl)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Serbian (sr)</entry>
            <entry>ISO-8859-5</entry>
          </row>
          <row>
            <entry>Norwegian Nynorsk (nn)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Turkish (tr)</entry>
            <entry>ISO-8859-9</entry>
          </row>
          <row>
            <entry>Norwegian (no)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Ukrainian (uk)</entry>
            <entry>KOI8-U</entry>
          </row>
          <row>
            <entry>Portuguese (pt)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Vietnamese (vi)</entry>
            <entry>TCVN5712-1</entry>
          </row>
          <row>
            <entry>Swedish (sv)</entry>
            <entry>ISO-8859-1</entry>
            <entry>Simplified Chinese (zh_CN)</entry>
            <entry>GBK</entry>
          </row>
          <row>
            <entry>Belarusian (be)</entry>
            <entry>CP1251</entry>
            <entry>Simplified Chinese, Singapore (zh_SG)</entry>
            <entry>GBK</entry>
          </row>
          <row>
            <entry>Bulgarian (bg)</entry>
            <entry>CP1251</entry>
            <entry>Traditional Chinese, Hong Kong (zh_HK)</entry>
            <entry>BIG5HKSCS</entry>
          </row>
          <row>
            <entry>Czech (cs)</entry>
            <entry>ISO-8859-2</entry>
            <entry>Traditional Chinese (zh_TW)</entry>
            <entry>BIG5</entry>
          </row>
          <row>
            <entry>Greek (el)</entry>
            <entry>ISO-8859-7</entry>
            <entry></entry>
            <entry></entry>
          </row>

        </tbody>

      </tgroup>

    </table>

    <note>
      <para>Manual pages in languages not in the list are not supported.</para>
    </note>

  </sect2>

  <sect2 id="contents-man-db" role="content">
    <title>Contents of Man-DB</title>

    <segmentedlist>
      <segtitle>Installed programs</segtitle>
      <segtitle>Installed libraries</segtitle>
      <segtitle>Installed directories</segtitle>

      <seglistitem>
        <seg>accessdb, apropos (link to whatis), catman, lexgrog, man, mandb,
        manpath, and whatis</seg>
        <seg>libman.so and libmandb.so (both in /usr/lib/man-db)</seg>
        <seg>/usr/lib/man-db, /usr/libexec/man-db,
        and /usr/share/doc/man-db-&man-db-version;</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="accessdb">
        <term><command>accessdb</command></term>
        <listitem>
          <para>Dumps the <command>whatis</command> database contents in
          human-readable form</para>
          <indexterm zone="ch-system-man-db accessdb">
            <primary sortas="b-accessdb">accessdb</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="apropos">
        <term><command>apropos</command></term>
        <listitem>
          <para>Searches the <command>whatis</command> database and displays
          the short descriptions of system commands that contain a given
          string</para>
          <indexterm zone="ch-system-man-db apropos">
            <primary sortas="b-apropos">apropos</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="catman">
        <term><command>catman</command></term>
        <listitem>
          <para>Creates or updates the pre-formatted manual pages</para>
          <indexterm zone="ch-system-man-db catman">
            <primary sortas="b-catman">catman</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="lexgrog">
        <term><command>lexgrog</command></term>
        <listitem>
          <para>Displays one-line summary information about a given manual
          page</para>
          <indexterm zone="ch-system-man-db lexgrog">
            <primary sortas="b-lexgrog">lexgrog</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="man">
        <term><command>man</command></term>
        <listitem>
          <para>Formats and displays the requested manual page</para>
          <indexterm zone="ch-system-man-db man">
            <primary sortas="b-man">man</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="mandb">
        <term><command>mandb</command></term>
        <listitem>
          <para>Creates or updates the <command>whatis</command> database</para>
          <indexterm zone="ch-system-man-db mandb">
            <primary sortas="b-mandb">mandb</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="manpath">
        <term><command>manpath</command></term>
        <listitem>
          <para>Displays the contents of $MANPATH or (if $MANPATH is not set)
          a suitable search path based on the settings in man.conf and the
          user's environment</para>
          <indexterm zone="ch-system-man-db manpath">
            <primary sortas="b-manpath">manpath</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="whatis">
        <term><command>whatis</command></term>
        <listitem>
          <para>Searches the <command>whatis</command> database and displays
          the short descriptions of system commands that contain the given
          keyword as a separate word</para>
          <indexterm zone="ch-system-man-db whatis">
            <primary sortas="b-whatis">whatis</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libman">
        <term><filename class="libraryfile">libman</filename></term>
        <listitem>
          <para>Contains run-time support for <command>man</command></para>
          <indexterm zone="ch-system-man-db libman">
            <primary sortas="c-libman">libman</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libmandb">
        <term><filename class="libraryfile">libmandb</filename></term>
        <listitem>
          <para>Contains run-time support for <command>man</command></para>
          <indexterm zone="ch-system-man-db libmandb">
            <primary sortas="c-libmandb">libmandb</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>