Just want to add that if Perl is your first programming language you might find it helpful to read a few books on Logic and Program Design or take a class in the subject. Apart from knowing the specific syntax and structure of any language, it is always helpful to have a good idea of how a program should flow and be able to identify and use correct programming structures. I took a class, which helped me a great deal. Other monks may be able to recommend some good books on the subject.