cpanminus (cpanm) is an awesome and lightweight CPAN installer with zero dependencies. It requires less than 10MB of RAM, has no interactive shell, uses sane defaults with quiet output, and can be easily upgraded via a single command. The document recommends starting to use cpanm and provides tips on commands like --prompt, --notest, and using it with PERL_CPANM_OPT and perlbrew.Read less