How to save in vi editor

Introduction to the vi Command

vi (short for “visual editor”) is a screen-oriented text editor that is ubiquitous in Linux and Unix-like operating systems.

It’s known for its power, efficiency, and modal editing approach, which can initially seem cryptic to new users but offers significant advantages once mastered.

Modal Editing: vi’s modal editing distinguishes it from most modern text editors.

It has two primary modes:

• Command Mode: This is the default mode when you open a file in vi.

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Keystrokes in this mode are interpreted as commands—moving the cursor, deleting text, copying and pasting, searching, and executing various editing operations.

• Insert Mode: To insert text directly, you must explicitly switch to insert mode using specific commands.

  In this mode, keystrokes are entered as characters into the file.

Ubiquity and Accessibility: vi is installed by default on virtually all Linux and Unix systems, making it readily available even in minimal environments.

This accessibility has made vi an essential tool for system admini

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