### What are Regular Expressions?
Regular expressions are a powerful way to search text and documents. Everyone should know how to use regular expressions.
Regular Expressions (aka regex) are used to find and replace words, numbers, and characters in programs such as LibreOffice (Find and Replace), the Thunar File Manager (Rename), and the Linux command line "grep" command, which stands for goto regular expression and print.
See comments to learn how to use regular expressions.
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### Tutorial on Regular Expressions
Here's a good video by Luke Smith on Odysee explaining regular expressions.
Sidenote: He is using the i3 desktop environment if you're curious what it looks like. i3 tiles windows, and is great for text based programs, such as terminals and command line text editors.
Video on Odysee:
https://odysee.com/@Luke:7/regular-expressions-regex-all-the-basics:1
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