What are the working modes of vi editor and how to convert them

The vi editor has three basic working modes, namely: command line mode, text input mode and end-of-line mode.

How to switch between modes:

Command Mode (Command Mode) Input a, i, o to enter text input mode (Input Mode);

Text input mode (Input Mode) Press ESC to enter Command Mode;

Enter [:] under Command Mode to enter Last line Mode;

Last line If there is a command error in Last line Mode, it will return to Command Mode.

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