well per one of the last suggestions. once you executed :

perl -MCPAN -e 'shell'
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you get the following message and you'll be at a cpan prompt

cpan shell -- CPAN exploration and modules installation (v1.7601)
ReadLine support available (try 'install Bundle::CPAN')
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once here you can install a module:
install File::Find
you can also get the Find.pm module here