October 2024
Beginner to intermediate
698 pages
16h 7m
English
Content preview from The Ultimate Linux Shell Scripting Guide
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9
Filtering Text with grep, sed, and Regular Expressions
So far, we’ve looked at how to perform file searches with find, and at how to use text-stream filter utilities to extract and present data from text files and program output streams. In this chapter we’ll be looking at two other utilities, sed and grep, that will allow you to supercharge both your searches and your text manipulations. Before that though, you need to understand about Regular Expressions.
Topics in this chapter include:
- Understanding Regular Expressions
- Understanding
sed - Understanding
grep - Using RegEx Buddy
- Using RegEx101
- Looking at some real-world examples
If you’re ready, let’s get started.
Technical Requirements
Use any of your Linux virtual machines or your Linux host ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.