source: BOOK/final-system/common/perl.xml@ e594680

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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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<sect1 id="ch-system-perl" role="wrap">
  <?dbhtml filename="perl.html"?>

  <title>Perl-&perl-version;</title>

  <indexterm zone="ch-system-perl">
    <primary sortas="a-Perl">Perl</primary>
  </indexterm>

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

    <para>The Perl package contains the Practical Extraction and Report
    Language.</para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Perl</title>

    <para os="s3">By default, Perl's Compress::Raw::Zlib module builds and
    links against its own internal copy of Zlib. The following command will
    tell it to use the system-installed Zlib:</para>

<screen os="s4"><userinput>sed -i -e '/^BUILD_ZLIB/s/True/False/' \
       -e '/^INCLUDE/s,\./zlib-src,/usr/include,' \
       -e '/^LIB/s,\./zlib-src,/usr/lib,' \
       cpan/Compress-Raw-Zlib/config.in</userinput></screen>

    <note os="a00">
      <para>If you are following the boot method you will need to enable the
      loopback device:</para>

<screen><userinput remap="test">ip link set lo up</userinput></screen>
    </note>

    <para os="a01">Before starting to configure, create a basic
    <filename>/etc/hosts</filename> file which will be referenced by one
    of Perl's configuration files as well as used by the test suite:</para>

<screen os="a02"><userinput remap="test">echo "127.0.0.1 localhost $(hostname)" &gt; /etc/hosts</userinput></screen>

    <para os="a">To have full control over the way Perl is set up, you can
    run the interactive <command>Configure</command> script and hand-pick
    the way this package is built. If you prefer instead to use the defaults
    that Perl auto-detects, prepare Perl for compilation with:</para>

<screen os="b"><userinput>./configure.gnu --prefix=/usr \
   -Dvendorprefix=/usr \
   -Dman1dir=/usr/share/man/man1 \
   -Dman3dir=/usr/share/man/man3 \
   -Dpager="/bin/less -isR" \
   -Dusethreads -Duseshrplib</userinput></screen>

    <variablelist os="c">
      <title>The meaning of the configure option:</title>

      <varlistentry os="c1">
        <term><parameter>-Dpager="/bin/less -isR"</parameter></term>
        <listitem>
          <para>Less has not yet been installed, so by default
          <command>perldoc</command> will invoke the <command>more</command>
          program for viewing documentation. This option ensures that it will
          use <command>less</command> instead.</para>
        </listitem>
      </varlistentry>

      <varlistentry os="c2">
        <term><parameter>-Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3</parameter></term>
        <listitem>
          <para>Since Groff is not installed yet,
          <command>configure.gnu</command> thinks that we do not want
          man pages for Perl. Issuing these parameters overrides this decision.</para>
        </listitem>
      </varlistentry>

      <varlistentry os="c3">
        <term><parameter>-Dusethreads</parameter></term>
        <listitem>
          <para>This tells Perl to use threads.</para>
        </listitem>
      </varlistentry>

      <varlistentry os="c4">
        <term><parameter>-Duseshrplib</parameter></term>
        <listitem>
          <para>This tells Perl to build a shared libperl.</para>
        </listitem>
      </varlistentry>

    </variablelist>

    <para os="d">Compile the package:</para>

<screen os="e"><userinput>make</userinput></screen>

    <para os="h">To test the results, issue:</para>

<screen os="h2"><userinput remap="test">make test</userinput></screen>

    <para os="j">Install the package:</para>

<screen os="k"><userinput>make install</userinput></screen>

  </sect2>

  <sect2 id="contents-perl" role="content">
    <title>Contents of Perl</title>

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

      <seglistitem>
        <seg>a2p, c2ph, config_data, corelist, cpan, cpan2dist, cpanp,
        cpanp-run-perl, enc2xs, find2perl, h2ph, h2xs, instmodsh, json_pp,
        libnetcfg, perl, perl&perl-version; (link to perl), perlbug,
        perldoc, perlivp, perlthanks (link to perlbug), piconv, pl2pm, pod2html,
        pod2latex, pod2man, pod2text, pod2usage, podchecker, podselect, prove,
        psed (link to s2p), pstruct (link to c2ph), ptar, ptardiff, ptargrep,
        s2p, shasum, splain, xsubpp, and zipdetails</seg>
        <seg>Several hundred which cannot all be listed here</seg>
        <seg>/usr/lib/perl5</seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="a2p">
        <term><command>a2p</command></term>
        <listitem>
          <para>Translates awk to Perl</para>
          <indexterm zone="ch-system-perl a2p">
            <primary sortas="b-a2p">a2p</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="c2ph">
        <term><command>c2ph</command></term>
        <listitem>
          <para>Dumps C structures as generated from
          <command>cc -g -S</command></para>
          <indexterm zone="ch-system-perl c2ph">
            <primary sortas="b-c2ph">c2ph</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="config_data">
        <term><command>config_data</command></term>
        <listitem>
          <para>Queries or changes configuration of Perl modules</para>
          <indexterm zone="ch-system-perl config_data">
            <primary sortas="b-config_data">config_data</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="corelist">
        <term><command>corelist</command></term>
        <listitem>
          <para>A commandline frontend to Module::CoreList</para>
          <indexterm zone="ch-system-perl corelist">
            <primary sortas="b-corelist">corelist</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="cpan">
        <term><command>cpan</command></term>
        <listitem>
          <para>Shell script that provides a command interface to CPAN.pm</para>
          <indexterm zone="ch-system-perl cpan">
            <primary sortas="b-cpan">cpan</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="cpan2dist">
        <term><command>cpan2dist</command></term>
        <listitem>
          <para>The CPANPLUS distribution creator</para>
          <indexterm zone="ch-system-perl cpan2dist">
            <primary sortas="b-cpan2dist">cpan2dist</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="cpanp">
        <term><command>cpanp</command></term>
        <listitem>
          <para>The CPANPLUS launcher</para>
          <indexterm zone="ch-system-perl cpanp">
            <primary sortas="b-cpanp">cpanp</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="cpanp-run-perl">
        <term><command>cpanp-run-perl</command></term>
        <listitem>
          <para>Perl script that (description needed)</para>
          <indexterm zone="ch-system-perl cpanp-run-perl">
            <primary sortas="b-cpanp-run-perl">cpanp-run-perl</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="enc2xs">
        <term><command>enc2xs</command></term>
        <listitem>
          <para>Builds a Perl extension for the Encode module from either
          Unicode Character Mappings or Tcl Encoding Files</para>
          <indexterm zone="ch-system-perl enc2xs">
            <primary sortas="b-enc2xs">enc2xs</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="find2perl">
        <term><command>find2perl</command></term>
        <listitem>
          <para>Translates <command>find</command> commands to Perl</para>
          <indexterm zone="ch-system-perl find2perl">
            <primary sortas="b-find2perl">find2perl</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="h2ph">
        <term><command>h2ph</command></term>
        <listitem>
          <para>Converts <filename class="extension">.h</filename> C header
          files to <filename class="extension">.ph</filename> Perl header
          files</para>
          <indexterm zone="ch-system-perl h2ph">
            <primary sortas="b-h2ph">h2ph</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="h2xs">
        <term><command>h2xs</command></term>
        <listitem>
          <para>Converts <filename class="extension">.h</filename> C header
          files to Perl extensions</para>
          <indexterm zone="ch-system-perl h2xs">
            <primary sortas="b-h2xs">h2xs</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="instmodsh">
        <term><command>instmodsh</command></term>
        <listitem>
          <para>A shell script for examining installed Perl modules,
          and can even create a tarball from an installed module</para>
          <indexterm zone="ch-system-perl instmodsh">
            <primary sortas="b-instmodsh">instmodsh</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="json_pp">
        <term><command>json_pp</command></term>
        <listitem>
          <para>Converts data between certain input and output formats</para>
          <indexterm zone="ch-system-perl json_pp">
            <primary sortas="b-json_pp">json_pp</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libnetcfg">
        <term><command>libnetcfg</command></term>
        <listitem>
          <para>Can be used to configure the
          <filename class="libraryfile">libnet</filename></para>
          <indexterm zone="ch-system-perl libnetcfg">
            <primary sortas="b-libnetcfg">libnetcfg</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="perl">
        <term><command>perl</command></term>
        <listitem>
          <para>Combines some of the best features of C, <command>sed</command>,
          <command>awk</command> and <command>sh</command> into a single
          swiss-army-knife language</para>
          <indexterm zone="ch-system-perl perl">
            <primary sortas="b-perl">perl</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="perl-version">
        <term><command>perl&perl-version;</command></term>
        <listitem>
          <para>A hard link to <command>perl</command></para>
          <indexterm zone="ch-system-perl perl-version">
            <primary sortas="b-perl&perl-version;">perl&perl-version;</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="perlbug">
        <term><command>perlbug</command></term>
        <listitem>
          <para>Used to generate bug reports about Perl, or the modules that come
          with it, and mail them</para>
          <indexterm zone="ch-system-perl perlbug">
            <primary sortas="b-perlbug">perlbug</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="perldoc">
        <term><command>perldoc</command></term>
        <listitem>
          <para>Displays a piece of documentation in pod format that is embedded
          in the Perl installation tree or in a Perl script</para>
          <indexterm zone="ch-system-perl perldoc">
            <primary sortas="b-perldoc">perldoc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="perlivp">
        <term><command>perlivp</command></term>
        <listitem>
          <para>The Perl Installation Verification Procedure; it can be used to
          verify that Perl and its libraries have been installed
          correctly</para>
          <indexterm zone="ch-system-perl perlivp">
            <primary sortas="b-perlivp">perlivp</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="perlthanks">
        <term><command>perlthanks</command></term>
        <listitem>
          <para>Used to generate thank you messages to mail to the Perl
          developers</para>
          <indexterm zone="ch-system-perl perlthanks">
            <primary sortas="b-perlthanks">perlthanks</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="piconv">
        <term><command>piconv</command></term>
        <listitem>
          <para>A Perl version of the character encoding converter
          <command>iconv</command></para>
          <indexterm zone="ch-system-perl piconv">
            <primary sortas="b-piconv">piconv</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pl2pm">
        <term><command>pl2pm</command></term>
        <listitem>
          <para>A rough tool for converting Perl4
          <filename class="extension">.pl</filename> files to Perl5
          <filename class="extension">.pm</filename> modules</para>
          <indexterm zone="ch-system-perl pl2pm">
            <primary sortas="b-pl2pm">pl2pm</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pod2html">
        <term><command>pod2html</command></term>
        <listitem>
          <para>Converts files from pod format to HTML format</para>
          <indexterm zone="ch-system-perl pod2html">
            <primary sortas="b-pod2html">pod2html</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pod2latex">
        <term><command>pod2latex</command></term>
        <listitem>
          <para>Converts files from pod format to LaTeX format</para>
          <indexterm zone="ch-system-perl pod2latex">
            <primary sortas="b-pod2latex">pod2latex</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pod2man">
        <term><command>pod2man</command></term>
        <listitem>
          <para>Converts pod data to formatted *roff input</para>
          <indexterm zone="ch-system-perl pod2man">
            <primary sortas="b-pod2man">pod2man</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pod2text">
        <term><command>pod2text</command></term>
        <listitem>
          <para>Converts pod data to formatted ASCII text</para>
          <indexterm zone="ch-system-perl pod2text">
            <primary sortas="b-pod2text">pod2text</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pod2usage">
        <term><command>pod2usage</command></term>
        <listitem>
          <para>Prints usage messages from embedded pod docs in files</para>
          <indexterm zone="ch-system-perl pod2usage">
            <primary sortas="b-pod2usage">pod2usage</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="podchecker">
        <term><command>podchecker</command></term>
        <listitem>
          <para>Checks the syntax of pod format documentation files</para>
          <indexterm zone="ch-system-perl podchecker">
            <primary sortas="b-podchecker">podchecker</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="podselect">
        <term><command>podselect</command></term>
        <listitem>
          <para>Displays selected sections of pod documentation</para>
          <indexterm zone="ch-system-perl podselect">
            <primary sortas="b-podselect">podselect</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="prove">
        <term><command>prove</command></term>
        <listitem>
          <para>A command-line tool for running tests against Test::Harness</para>
          <indexterm zone="ch-system-perl prove">
            <primary sortas="b-prove">prove</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="psed">
        <term><command>psed</command></term>
        <listitem>
          <para>A Perl version of the stream editor <command>sed</command></para>
          <indexterm zone="ch-system-perl psed">
            <primary sortas="b-psed">psed</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pstruct">
        <term><command>pstruct</command></term>
        <listitem>
          <para>Dumps C structures as generated from <command>cc -g -S</command>
          stabs</para>
          <indexterm zone="ch-system-perl pstruct">
            <primary sortas="b-pstruct">pstruct</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ptar">
        <term><command>ptar</command></term>
        <listitem>
          <para>A <command>tar</command>-like program written in Perl</para>
          <indexterm zone="ch-system-perl ptar">
            <primary sortas="b-ptar">ptar</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ptardiff">
        <term><command>ptardiff</command></term>
        <listitem>
          <para>A Perl program that compares an extracted archive with an
          unextracted one</para>
          <indexterm zone="ch-system-perl ptardiff">
            <primary sortas="b-ptardiff">ptardiff</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="ptargrep">
        <term><command>ptargrep</command></term>
        <listitem>
          <para>A Perl program that applies pattern matching to the contents
          of files in a tar archive</para>
          <indexterm zone="ch-system-perl ptargrep">
            <primary sortas="b-ptargrep">ptargrep</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="s2p">
        <term><command>s2p</command></term>
        <listitem>
          <para>Translates <command>sed</command> to Perl</para>
          <indexterm zone="ch-system-perl s2p">
            <primary sortas="b-s2p">s2p</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="shasum">
        <term><command>shasum</command></term>
        <listitem>
          <para>Prints or checks SHA checksums</para>
          <indexterm zone="ch-system-perl shasum">
            <primary sortas="b-shasum">shasum</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="splain">
        <term><command>splain</command></term>
        <listitem>
          <para>Is used to force verbose warning diagnostics in Perl</para>
          <indexterm zone="ch-system-perl splain">
            <primary sortas="b-splain">splain</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xsubpp">
        <term><command>xsubpp</command></term>
        <listitem>
          <para>Converts Perl XS code into C code</para>
          <indexterm zone="ch-system-perl xsubpp">
            <primary sortas="b-xsubpp">xsubpp</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="zipdetails">
        <term><command>zipdetails</command></term>
        <listitem>
          <para>Displays details about the internal structure of a Zip file</para>
          <indexterm zone="ch-system-perl zipdetails">
            <primary sortas="b-zipdetails">zipdetails</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>