http://www.perlmonks.org?node_id=189940


in reply to When did warnings.pm come into existence?

From the perl 5.6.0 FAQ:
     How do I temporarily block warnings?

     If you are running Perl 5.6.0 or better, the use warnings
     pragma allows fine control of what warning are produced. ...

[download]
Previous versions lacked this pragma, but included the '-w' command line switch.

Cheers,
Shendal

In Section Seekers of Perl Wisdom