To install CPANPLUS::Shell::Default::Plugins::Diff, copy and paste the appropriate command in to your terminal.
cpanm
cpanm CPANPLUS::Shell::Default::Plugins::Diff
CPAN shell
perl -MCPAN -e shell
install CPANPLUS::Shell::Default::Plugins::Diff
For more information on module installation, please visit the detailed CPAN module installation guide.