Vim

Vim is the universal text editor installed on every UNIX system. While Neovim innovates, Vim focuses on backward compatibility and stability.

When to Use

• SSH / Servers: It is always there. vi usually aliases to vim.
• Stability: Scripts written in 2005 still work.
• Resource Constraints: Runs on embedded routers.

Core Concepts

Modes

• Normal: Navigation (hjkl).
• Insert: Typing (i, a).
• Visual: Selection (v).
• Command: Ex commands (:w, :q).