A Regular Expression is a sequence of characters, numbers, and symbols that define a pattern that allows you to search, match, replace, manipulate, and manage text. Regular expressions are frequently used to configure and administer networks and computer systems.
Regular expressions are very powerful, but also difficult to understand and complicated to use. Regular Expressions is a programming language within a programming language. You can use regular expression with almost all programming languages.
You can find plenty of regular expressions reference sheets online, but simple examples are scarce. This book provides over 50 simple examples that you can easily copy and experiment with. My goal in this book is to make you proficient in the use of regular expressions without the burden of ups and extras and the complicated structures of programming languages.