Hello! Welcome to 'Perl for the Impatient'!. This is designed to serve as a preposterously brief and somehow practical guide to getting things done with Perl. It works as a quick overview or refresher, so if you're curious about the language or just inherited a freaky webscraper from that strange dude whose about to retired, step right up.
I wrote it to be read in the following order, but if something strikes your fancy, it should be more or less sensible to pick it up by topic if you've got a little familiarity.
I'd just take the code, comment out what you don't want to see, and then run away and see what happens.
if you think this is all well and good, but might teach you Just Enough To Be Dangerous, you're right! Anything could happen! In all seriousness, though, this isn't comprehensive.
Consider the below my sources cited and my further reading list:
Modern Perl, 4th ed.