Health warning: text mostly generated by chatGPT but proofread by a human.

See 1-what-is-a-shell.md for detailed information about shells, how to identify your current shell, and setting up zsh with oh-my-zsh.

See 2-package-managers.md for detailed information about Linux package managers and Homebrew for macOS.

See 3-terminal-setup.md for detailed information about dot files, customization, aliases, and functions.

See 4-builtin-commands.md for detailed information about useful Unix/Linux commands including documentation tools, file operations, text processing, system information, networking, and more.