The hands-on guide for developers who want to master the command line and build a fast, flexible, and portable development environment.
This isn't a tour of shell commands. It's a blueprint for creating workflows that scale across machines, teams, and projects. By the end, your shell won't just be a tool; it'll be an extension of your thinking.
AI regularly composes shell commands. Understanding the shell helps you verify and build on what AI generates.
Find, filter, and reshape data using grep, regex, and pipelines. Compose powerful commands from simple building blocks.
Automate setup, configuration, and repetitive tasks. From one-liners to robust shell programs.
Manage your environment with Git and dotfiles. Build workflows that scale across machines and projects.