Chapter 3: Working with Regular Expressions
Regular expressions, basically, are pattern matching tools. However, they are one of the most powerful mechanisms at your disposal for parsing data. One regular expression -- just a few characters -- can take the place of hundreds of lines of code with other languages or algorithms. In this chapter, you will learn what regular expressions are and when to use them. Then, you'll learn about all the different features and intracacies of regular expressions. You'll also learn about use of regular expressions in various Linux languages such as Perl, egrep, sed, and others.
- Introducing Regular Expressions
- Understanding Character Classes
- Using Quantifiers
- Introducing Alternation and Grouping
- Supporting Regular Expressions in Linux
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