I appreciate all of the advice and reference I have been given over the past weeks. I excelled in Perl faster than I could have expected. I am already using most of the info from my last question, and plan to use all of it. Even the questions I've had before I have made great use of. This was just a question that I couldn't find a great book/link on in all of the searching I've been doing. Thank You very much luis.roca.