Take the 2-minute tour ×  Is there a command or a variable that
shows me all the different warnings which get enabled when I use
the warning-pragma?  share|improve this question add comment  2
Answers  up vote 6 down vote accepted  perldoc perllexwarn shows
the hierarchy of categories warnings uses.  share|improve this
answer add comment   perldoc perldiag  The output starts:
perldiag − various Perl diagnostics    (W) A warning (optional).
(D) A deprecation (optional). (S) A severe warning (enabled by
default). (F) A fatal error (trappable). (X) A very fatal error
(nontrappable).  The majority of messages from the first three
classifications above (W, D & S) can be controlled using the
"warnings" pragma.  share|improve this answer add comment  Your
Answer