Beginner's Introduction to Perl 5.10, Part 2
Perl 5 has come a long way in the past few years. The newest version, Perl 5.10, added several new features to make your programs shorter, easier to maintain, easier to write, and more powerful. Here's how to start using files and strings in modern Perl.
Link: http://www.perl.com/pub/a/2008/05/07/beginners-introduction-to-perl-510-part-2.html?CMP=OTC-BD0016219291&ATT=Beginner+s+Introduction+to+Perl+5+10+Part+2