[ab4fdfc] | 1 | <?xml version="1.0" encoding="UTF-8"?>
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[a206343] | 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 | <!-- it seems at least one entity is needed -->
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| 8 | <!ENTITY perl-alternatives-dummy "42">
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| 9 | ]>
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| 10 | <!-- Begin perl alternatives -->
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| 11 | <sect2 id="perl-alternatives" xreflabel="CPAN automated install of perl modules">
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| 12 |
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| 13 | <title>CPAN automated install of perl modules</title>
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| 14 |
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| 15 | <indexterm zone="perl-alternatives">
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| 16 | <primary sortas="a-cpan-install-of-perl-modules">CPAN automated install of perl modules</primary>
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| 17 | </indexterm>
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| 18 |
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[4392a40] | 19 | <sect3 role="installation" id="perl-auto-install"
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[a206343] | 20 | xreflabel="automatic installation of perl modules">
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| 21 | <title> Automatic Installation of Perl Modules.</title>
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| 22 |
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| 23 | <para>
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| 24 | There is an alternate way of installing the modules using the
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| 25 | <command>cpan</command> shell <command>install</command> command. The
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| 26 | command automatically downloads the latest source from the CPAN archive
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| 27 | for the module and any missing prerequisite modules listed by upstream.
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| 28 | Then for each module it extracts it, runs the compilation, the tests and
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| 29 | installs it.
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| 30 | </para>
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| 31 |
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| 32 | <para>
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| 33 | You still need to install any non-perl dependencies before running
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| 34 | the automated installation method. You may wish to clean out the
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| 35 | <filename class="directory">build/</filename> directory after
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| 36 | installing, to free up the space. If any post-install actions such
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| 37 | as creating a symlink are mentioned, you should also do those.
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| 38 | </para>
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| 39 |
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| 40 | <para>
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| 41 | The first time you run <command>cpan</command>, you'll be prompted
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| 42 | to enter some information regarding download locations and methods. This
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| 43 | information is retained in files located in
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| 44 | <filename class='directory'>~/.cpan</filename>.
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| 45 | </para>
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| 46 |
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| 47 | <para>
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| 48 | In particular, you may wish to configure it so that <xref linkend="sudo"/>
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| 49 | is used for the installs, allowing you to build and test as a regular user.
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| 50 | The following examples have not used that approach.
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| 51 | </para>
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| 52 |
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| 53 | <para>
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| 54 | Start the
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| 55 | <command>cpan</command> shell by issuing '<command>cpan</command>' as the
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| 56 | <systemitem class="username">root</systemitem> user. Any module may now be
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| 57 | installed from the
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| 58 | <emphasis role='underlined'><prompt>cpan> </prompt></emphasis>
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| 59 | prompt with the command:
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| 60 | </para>
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| 61 |
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| 62 | <screen role="root"><userinput>install <replaceable><Module::Name></replaceable></userinput></screen>
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| 63 |
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| 64 | <para>
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| 65 | For additional commands and help, issue '<command>help</command>'
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| 66 | from the
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| 67 | <emphasis role='underlined'><prompt>cpan> </prompt></emphasis>
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| 68 | prompt.
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| 69 | </para>
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| 70 |
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| 71 | <para>
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| 72 | Alternatively, for scripted or non-interactive installations, use the
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| 73 | following syntax as the <systemitem class="username">root</systemitem>
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| 74 | user to install one or more modules:
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| 75 | </para>
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| 76 |
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| 77 | <screen role="root"><userinput>cpan -i <replaceable><Module1::Name> <Module2::Name></replaceable></userinput></screen>
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| 78 |
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| 79 | <para>
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| 80 | Review the <filename>cpan.1</filename> man page for additional
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| 81 | parameters you can pass to <command>cpan</command> on the command line.
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| 82 | </para>
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| 83 |
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| 84 | </sect3>
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| 85 |
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| 86 | </sect2>
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