Well, you removed your existing post, rather than provided an update, and changed the post title, which makes the existing replies seem incorrect. Please don't do this, just mark which parts of the post are new.

My previous advice stands, if you want to write perl scripts you'll need to learn some perl. This (which I found via a search engine) suggests that either BioPerl will be able to do this, or provides a link to a STAR parser as a robust solution. I'll leave the rest to you as research. If you have an actual Perl problem please let us know.