-A module [ module ... ]
    Shows the primary maintainers for the specified modules.

-c module
    Runs a `make clean` in the specified module's directories.

-C module [ module ... ]
    Show the Changes files for the specified modules

-D module [ module ... ]
    Show the module details. This prints one line for each out-of-date module (meaning, modules locally
    installed but have newer versions on CPAN).  Each line has three columns: module name, local version,
    and CPAN version.

-f  Force the specified action, when it normally would have failed. Use this to install a module even if
    its tests fail. When you use this option, -i is not optional for installing a module when you need to
    force it:

            % cpan -f -i Module::Foo

-F  Turn off CPAN.pm's attempts to lock anything. You should be careful with this since you might end up
    with multiple scripts trying to muck in the same directory. This isn't so much of a concern if you're
    loading a special config with "-j", and that config sets up its own work directories.

-g module [ module ... ]
    Downloads to the current directory the latest distribution of the module.

-G module [ module ... ]
    UNIMPLEMENTED

    Download to the current directory the latest distribution of the modules, unpack each distribution,
    and create a git repository for each distribution.

    If you want this feature, check out Yanick Champoux's "Git::CPAN::Patch" distribution.

-h  Print a help message and exit. When you specify "-h", it ignores all of the other options and
    arguments.

-i  Install the specified modules.

-j Config.pm
    Load the file that has the CPAN configuration data. This should have the same format as the standard
    CPAN/Config.pm file, which defines $CPAN::Config as an anonymous hash.

-J  Dump the configuration in the same format that CPAN.pm uses. This is useful for checking the
    configuration as well as using the dump as a starting point for a new, custom configuration.

-L author [ author ... ]
    List the modules by the specified authors.

-m  Make the specified modules.

-O  Show the out-of-date modules.

-t  Run a `make test` on the specified modules.

-r  Recompiles dynamically loaded modules with CPAN::Shell->recompile.

-v  Print the script version and CPAN.pm version then exit.