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App::cpanminus(3)     User Contributed Perl Documentation    App::cpanminus(3)

NAME
       App::cpanminus - get, unpack, build and install modules from CPAN
SYNOPSIS
           cpanm Module
       Run "cpanm -h" or "perldoc cpanm" for more options.
DESCRIPTION
       cpanminus is a script to get, unpack, build and install modules from
       CPAN and does nothing else.
       It's dependency free (can bootstrap itself), requires zero
       configuration, and stands alone. When running, it requires only 10MB of
       RAM.
INSTALLATION
       There are several ways to install cpanminus to your system.
   Package management system
       There are Debian packages, RPMs, FreeBSD ports, and packages for other
       operation systems available. If you want to use the package management
       system, search for cpanminus and use the appropriate command to
       install. This makes it easy to install "cpanm" to your system without
       thinking about where to install, and later upgrade.
   Installing to system perl
       You can also use the latest cpanminus to install cpanminus itself:
           curl -L http://cpanmin.us | perl - --sudo App::cpanminus
       This will install "cpanm" to your bin directory like "/usr/local/bin"
       (unless you configured "INSTALL_BASE" with local::lib), so you probably
       need the "--sudo" option.
   Installing to local perl (perlbrew)
       If you have perl in your home directory, which is the case if you use
       tools like perlbrew, you don't need the "--sudo" option, since you're
       most likely to have a write permission to the perl's library path. You
       can just do:
           curl -L http://cpanmin.us | perl - App::cpanminus
       to install the "cpanm" executable to the perl's bin path, like
       "~/perl5/perlbrew/bin/cpanm".
   Downloading the standalone executable
       You can also copy the standalone executable to whatever location you'd
       like.
           cd ~/bin
           curl -LO http://xrl.us/cpanm
           chmod +x cpanm
           # edit shebang if you don't have /usr/bin/env
       This just works, but be sure to grab the new version manually when you
       upgrade because "--self-upgrade" might not work for this.
DEPENDENCIES
       perl 5.8 or later.
       o   'tar' executable (bsdtar or GNU tar version 1.22 are recommended)
           or Archive::Tar to unpack files.
       o   C compiler, if you want to build XS modules.
       o   make
       o   Module::Build (core in 5.10)
QUESTIONS
   Another CPAN installer?
       OK, the first motivation was this: the CPAN shell runs out of memory
       (or swaps heavily and gets really slow) on Slicehost/linode's most
       affordable plan with only 256MB RAM. Should I pay more to install perl
       modules from CPAN? I don't think so.
   But why a new client?
       First of all, let me be clear that CPAN and CPANPLUS are great tools
       I've used for literally years (you know how many modules I have on
       CPAN, right?). I really respect their efforts of maintaining the most
       important tools in the CPAN toolchain ecosystem.
       However, for less experienced users (mostly from outside the Perl
       community), or even really experienced Perl developers who know how to
       shoot themselves in their feet, setting up the CPAN toolchain often
       feels like yak shaving, especially when all they want to do is just
       install some modules and start writing code.
   Zero-conf? How does this module get/parse/update the CPAN index?
       It queries the CPAN Meta DB site at <http://cpanmetadb.plackperl.org/>;.
       The site is updated at least every hour to reflect the latest changes
       from fast syncing mirrors. The script then also falls back to query the
       module at <http://metacpan.org/>; using its wonderful API.
       Upon calling these API hosts, cpanm (1.6004 or later) will send the
       local perl versions to the server in User-Agent string by default. You
       can turn it off with "--no-report-perl-version" option. Read more about
       the option with cpanm, and read more about the privacy policy about
       this data collection at <http://cpanmetadb.plackperl.org/#privacy>;
       Fetched files are unpacked in "~/.cpanm" and automatically cleaned up
       periodically.  You can configure the location of this with the
       "PERL_CPANM_HOME" environment variable.
   Where does this install modules to? Do I need root access?
       It installs to wherever ExtUtils::MakeMaker and Module::Build are
       configured to (via "PERL_MM_OPT" and "PERL_MB_OPT"). So if you're using
       local::lib, then it installs to your local perl5 directory. Otherwise
       it installs to the site_perl directory that belongs to your perl.
       cpanminus at a boot time checks whether you have configured local::lib,
       or have the permission to install modules to the site_perl directory.
       If neither, it automatically sets up local::lib compatible installation
       path in a "perl5" directory under your home directory. To avoid this,
       run the script as the root user, with "--sudo" option or with
       "--local-lib" option.
   cpanminus can't install the module XYZ. Is it a bug?
       It is more likely a problem with the distribution itself. cpanminus
       doesn't support or is known to have issues with distributions like as
       follows:
       o   Tests that require input from STDIN.
       o   Tests that might fail when "AUTOMATED_TESTING" is enabled.
       o   Modules that have invalid numeric values as VERSION (such as
           "1.1a")
       These failures can be reported back to the author of the module so that
       they can fix it accordingly, rather than me.
   Does cpanm support the feature XYZ of CPAN and CPANPLUS?
       Most likely not. Here are the things that cpanm doesn't do by itself.
       And it's a feature - you got that from the name minus, right?
       If you need these features, use CPAN, CPANPLUS or the standalone tools
       that are mentioned.
       o   CPAN testers reporting
       o   Building RPM packages from CPAN modules
       o   Listing the outdated modules that needs upgrading. See
           App::cpanoutdated
       o   Showing the changes of the modules you're about to upgrade. See
           cpan-listchanges
       o   Patching CPAN modules with distroprefs.
       See cpanm or "cpanm -h" to see what cpanminus can do :)
COPYRIGHT
       Copyright 2010- Tatsuhiko Miyagawa
       The standalone executable contains the following modules embedded.
       CPAN::DistnameInfo Copyright 2003 Graham Barr
       Parse::CPAN::Meta Copyright 2006-2009 Adam Kennedy
       local::lib Copyright 2007-2009 Matt S Trout
       HTTP::Tiny Copyright 2011 Christian Hansen
       Module::Metadata Copyright 2001-2006 Ken Williams. 2010 Matt S Trout
       version Copyright 2004-2010 John Peacock
       JSON::PP Copyright 2007-2011 by Makamaka Hannyaharamitu
       CPAN::Meta, CPAN::Meta::Requirements Copyright (c) 2010 by David Golden
       and Ricardo Signes
       CPAN::Meta::YAML Copyright 2010 Adam Kennedy
       File::pushd Copyright 2012 David Golden
LICENSE
       This software is licensed under the same terms as Perl.
CREDITS
   CONTRIBUTORS
       Patches and code improvements were contributed by:
       Goro Fuji, Kazuhiro Osawa, Tokuhiro Matsuno, Kenichi Ishigaki, Ian
       Wells, Pedro Melo, Masayoshi Sekimura, Matt S Trout (mst), squeeky,
       horus and Ingy dot Net.
   ACKNOWLEDGEMENTS
       Bug reports, suggestions and feedbacks were sent by, or general
       acknowledgement goes to:
       Jesse Vincent, David Golden, Andreas Koenig, Jos Boumans, Chris
       Williams, Adam Kennedy, Audrey Tang, J. Shirley, Chris Prather, Jesse
       Luehrs, Marcus Ramberg, Shawn M Moore, chocolateboy, Chirs Nehren,
       Jonathan Rockway, Leon Brocard, Simon Elliott, Ricardo Signes, AEvar
       Arnfjord Bjarmason, Eric Wilhelm, Florian Ragwitz and xaicron.
COMMUNITY
       <http://github.com/miyagawa/cpanminus>; - source code repository, issue
       tracker
       <irc://irc.perl.org/#toolchain>; - discussions about Perl toolchain. I'm
       there.
NO WARRANTY
       This software is provided "as-is," without any express or implied
       warranty. In no event shall the author be held liable for any damages
       arising from the use of the software.
SEE ALSO
       CPAN CPANPLUS pip

perl v5.16.3                      2013-06-19                 App::cpanminus(3)