Teach Yourself Perl 5 in 21 Days, Second Edition is the ideal book for beginning - and intermediate - level users who want to gain a solid understanding of this programming language. Using step-by-step tutorials and the easy-to-follow approach, you can Teach yourself Perl 5 in 21 Days! Through various teaching elements, you'll learn everything you need to know about this popular programming language. You'll discover how to manipulate text, generate reports, and perform system tasks. Through practical, hands-on instructions, logically organized lessons, and helpful Q & A sections, you'll master Perl functions and concepts and be developing robust programs in no time. Plus, Do/Don't boxes show you how to avoid potential programming pitfalls, illustrations explain constructs such as associative arrays, and tables serve as handy references.