Mastering Regular Expressions (Regex)
Understand the syntax and power of regular expressions for advanced pattern matching.
Intro to Regular Expressions
Welcome to Regular Expressions (Regex)! Regex is a powerful mini-language used for pattern matching in text. It's like a super-charged search tool.
You can use Regex to search, replace, and validate specific text patterns in files or command output. Mastering it will make you much more efficient at the command line!
Matching Exact Text
The simplest Regex matches literal characters. This means the pattern will look for the exact sequence of characters you provide.
For example, searching for apple will only find occurrences of "apple".
echo "I have an apple and a pineapple." | grep 'apple'All lessons in this course
- Mastering Regular Expressions (Regex)
- Advanced `grep` and `find` Patterns
- `xargs` for Command Chaining
- Stream Editing at Scale with sed and tr