Sams Teach Yourself Perl 5 in 21 Days is the ideal book for beginner and intermediate level users who want to gain a solid understanding of this programming language. Using step-by-step tutorials, you'll learn everything you need to know about this popular programming language. 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.