Perl::Critic::Policy::Community::WarningsSwitch - Scripts should not use the -w switch on the shebang line
The -w switch enables warnings globally in a perl program, including for any modules that did not explicitly enable or disable any warnings. The -W switch enables warnings even for modules that explicitly disabled them. The primary issue with this is enabling warnings for code that you did not write. Some of these modules may not be designed to run with warnings enabled, but still work fine. Instead, use warnings within your own code only.
#!/usr/bin/perl -w # not ok
#!/usr/bin/perl -W # not ok
use warnings; # ok
This policy is part of Perl::Critic::Community.
This policy is not configurable except for the standard options.
Dan Book, firstname.lastname@example.org
Copyright 2015, Dan Book.
This library is free software; you may redistribute it and/or modify it under the terms of the Artistic License version 2.0.
To install Perl::Critic::Community, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.