
# Using Python to Interact with the Operating System


Regular Expressions

Google
In this module, you’ll learn about what a regular expression is and why you would use one. We’ll dive into the basics of regular expressions and give examples of wildcards, repetition qualifiers, escapare characters, and more. Next up, we’ll explore advanced regular expressions and deep dive on repetition qualifiers. You’ll tackle new exercises like capturing groups and extracting PIDs using regexes. Finally, we’ll provide a cheat sheet to serve as your go-to guide for regular expressions.

# Learning Objectives
* Define what a regular expression is and why they’re useful
* Utilize basic regular expression examples like simple matching or wildcard and character classes
* Understand repetition qualifiers in detail
* Utilize advanced regular expressions and understand how the exercises can be used in real-life scenarios
