Perl::Critic::Policy::TestingAndDebugging::ProhibitShebangWarningsArg
Check to see if the old style perl -w shebang line is used to switch on warnings. This should be replaced with the newer use warnings; syntax.
perl -w
use warnings;
To install Parrot::Op, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Parrot::Op
CPAN shell
perl -MCPAN -e shell install Parrot::Op
For more information on module installation, please visit the detailed CPAN module installation guide.