1.1. What Should You Know Already?
We'll presume that you've already read Learning Perl, or at least pretend you have, and that you've played enough with Perl to already have those basics down. For example, you won't see an explanation in this book that shows how to access the elements of an array or return a value from a subroutine.
Make sure you know the following things:
You might pick up deeper insight into these topics in this book, but we're going to presume you know the basics.