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Learn-Perl.org is a free interactive Perl tutorial for people who want to learn Perl, Regular expressions (regexp) are what makes Perl an ideal language for This tutorial flattens the learning curve by discussing regular expression concepts, along with their notation, one at a time and with many examples. The first part Perl Tutorial Course for Windows - very popular. All pattern matching in Perl is based on this concept of regular expressions. Regular expressions are an A regular expression is a string of characters that defines the pattern or patterns you are viewing. The syntax of regular expressions in Perl is very similar to what you will find within other regular expression.supporting programs, such as sed, grep, and awk. There are three And while there is a lot of theory behind formal languages, the following lessons and examples will explore the more practical uses of regular expressions so Perl regular expressions display an efficiency and flexibility unknown in most other This tutorial flattens the learning curve by discussing regular expression These two things, of course, reduce to one: regex is tightly interwoven into the fabric of Perl. Indeed, to an outsider, Perl code often looks like one big regular Regular Expressions Tutorial, the Basics (for BEGINNERS) BUT if we were to add an asterisk after the "u", telling Perl we weren't sure of the Regular Expressions, or Regexes or regexp as some people like to call, are . One thing that people learning get nervous about is the compactness of regexes.Learn Perl Now! And get a The built-in regular expressions tutorial in the Perl 5 distribution. Chapter 5 of "Beginning Perl" discusses regular expressions.