Vi -

It is guaranteed to be available on any Unix system, making it essential for system administration.

: Move cursor left, down, up, right (alternative to arrow keys). w : Move forward one word. b : Move backward one word. 0 (zero) : Move to the beginning of the line. $ : Move to the end of the line. 3. Editing (Command Mode) x : Delete the character under the cursor. dd : Delete (cut) the entire current line. yy : Yank (copy) the current line. p : Paste the copied or deleted text after the cursor. u : Undo the last action. Advantages It is guaranteed to be available on any

To start using vi , you only need to learn a few key commands: vi filename : Open or create a new file. i : Switch to Insert mode to start typing text. : Exit Insert mode and return to Command mode . :w : Save (write) the file. :q : Quit the editor. :wq or ZZ : Save and quit. :q! : Quit without saving changes. 2. Navigation (Command Mode) b : Move backward one word