In this chapter, you will know what regular expressions is all about. Also, topics like substitution, common operators, grouping, delimiter replacement and examples of regular expressions are discussed.

In This Chapter:

What are Regular Expressions

What are regular expressions?

Substitution

How can you use regular expressions along with substitution?

Common Operators

Here, you will learn how to use regular expressions as a main modifier tool in Perl.

Grouping

Grouping is used to decompose any variables into groups.

Delimiter replacement

How are delimiters used with regular expressions and modifiers?

Regular Expressions Example

Further explanation and examples of regular expressions.