vi is a powerful, modal text editor that is standard on nearly all Unix and Unix-like operating systems (including Linux and macOS). It is known for its speed and efficiency, allowing users to edit text without removing their hands from the home row of the keyboard. Key Concepts & Modal Editing

Highly productive for power users who prefer keyboard shortcuts over mouse navigation.

Used for advanced commands like saving and quitting. Essential vi Commands

Most modern systems actually run when you type vi . Vim is backward-compatible with vi but adds features like syntax highlighting, undo branching, and plugin support. Explain how to configure vi (using .exrc or .vimrc )? Show how to use split screens for editing multiple files? Let me know how you'd like to proceed! An introduction to the vi editor - Red Hat

Unlike modern word processors (like Notepad), vi is , meaning the keyboard behaves differently depending on the mode you are in.