© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023
D. BothUsing and Administering Linux: Volume 2https://doi.org/10.1007/978-1-4842-9615-8_25

25. Regular Expressions

David Both1  
(1)
Raleigh, NC, USA
 

Objectives

In this chapter you will learn
  • To define the term “regular expression”

  • To describe the purpose of regular expressions and extended regular expressions

  • To differentiate between different styles of regular expressions as used by different tools

  • To state the difference between basic regular expressions and extended regular expressions

  • To identify and use many of the metacharacters and expressions used to build regular expressions for typical administrative tasks

  • To use regular expressions and extended ...

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