FAQ 8.45 How do I install a module from CPAN?

Discussion in 'Perl Misc' started by PerlFAQ Server, Feb 17, 2011.

  1. This is an excerpt from the latest version perlfaq8.pod, which
    comes with the standard Perl distribution. These postings aim to
    reduce the number of repeated questions as well as allow the community
    to review and update the answers. The latest version of the complete
    perlfaq is at http://faq.perl.org .

    --------------------------------------------------------------------

    8.45: How do I install a module from CPAN?

    (contributed by brian d foy)

    The easiest way is to have a module also named CPAN do it for you by
    using the "cpan" command the comes with Perl. You can give it a list of
    modules to install:

    $ cpan IO::Interactive Getopt::Whatever

    If you prefer "CPANPLUS", it's just as easy:

    $ cpanp i IO::Interactive Getopt::Whatever

    If you want to install a distribution from the current directory, you
    can tell "CPAN.pm" to install "." (the full stop):

    $ cpan .

    See the documentation for either of those commands to see what else you
    can do.

    If you want to try to install a distribution by yourself, resolving all
    dependencies on your own, you follow one of two possible build paths.

    For distributions that use *Makefile.PL*:

    $ perl Makefile.PL
    $ make test install

    For distributions that use *Build.PL*:

    $ perl Build.PL
    $ ./Build test
    $ ./Build install

    Some distributions may need to link to libraries or other third-party
    code and their build and installation sequences may be more complicated.
    Check any *README* or *INSTALL* files that you may find.



    --------------------------------------------------------------------

    The perlfaq-workers, a group of volunteers, maintain the perlfaq. They
    are not necessarily experts in every domain where Perl might show up,
    so please include as much information as possible and relevant in any
    corrections. The perlfaq-workers also don't have access to every
    operating system or platform, so please include relevant details for
    corrections to examples that do not work on particular platforms.
    Working code is greatly appreciated.

    If you'd like to help maintain the perlfaq, see the details in
    perlfaq.pod.
     
    PerlFAQ Server, Feb 17, 2011
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