To install Task::Perl::Critic::IncludingOptionalDependencies, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Task::Perl::Critic::IncludingOptionalDependencies
CPAN shell
perl -MCPAN -e shell
install Task::Perl::Critic::IncludingOptionalDependencies
For more information on module installation, please visit the detailed CPAN module installation guide.