sudo cpan install Foo::Bar must actually be sudo cpan Foo::Bar.

Installing modules with cpan is the most frequent task, so you don't have to give it any command. Just give it the module names and let it go. I think its pretty clear from the documentation how you are supposed to call it. If there's something that it's not doing correctly, send me a bug report.

You have to know what he's talking about to get this one. It's not a bug, it's a "feature". Look at http://search.cpan.org/search?query=install&mode=module.

If you mistakenly type "cpan install Foo::Bar", you wind up installing the distribution junoscript-perl. It's easy to make the mistake and type "install" and many people don't even notice that junoscript has also been installed if they aren't watching closely.