Vi

About

Vi is a screen-oriented text editor originally created for Unix. It's known for its modal editing and efficiency.

Key Features

• Modal editing (command, insert, visual)
• Regular expression support
• Extensibility (through configuration files)

Pros

• Extremely efficient for experienced users
• Lightweight and fast
• Available on virtually every Unix system

Cons

• Steep learning curve
• Requires memorization of commands
• Not as intuitive as GUI editors