The new screencast is about using the built-in debugger of Perl. I gave talks about this at various Perl workshops and conferences and there were always lots of people who have never used the debugger. I hope this will help more people to start using it.

Running the debugger:

perl -d param param

The debugger commands that were mentioned in this video are:

q - to quit

h - to get the help

p - to print

s - step in

n - step over

r - step out

T - stack trace

l - listing code

I also recommend to read the book of Richard Foley and Andy Lester: Pro Perl Debugging