If you don't mind CPANPLUS:

CPANPLUS::Backend->new->fetch(
    modules => ['Name::Of::Module'],
    fetchdir => '/directory/where/you/want/it',
);

[download]

In reply to Re: code to grab the lates version of a module from CPAN? by adrianh
in thread code to grab the latest version of a module from CPAN? by perrin

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