[Drajor]

Originally Posted by Zamthos

I use this:
What does the W do?

 perl -c path/to/script.pl

prints warnings about dubious constructs, such as variable names mentioned only once and scalar variables used before being set; redefined subroutines; references to undefined filehandles; filehandles opened read-only that you are attempting to write on; values used as a number that don't look like numbers; using an array as though it were a scalar; if your subroutines recurse more than 100 deep; and innumerable other things.

http://perldoc.perl.org/perlrun.html#Command-Switches

Use google, saves everyone time with trivialities.