Linux commands: Delete and restore commands

Tap commands in the following order

①vim filename

②e

③i

④esc

Delete command:

X (lowercase): Deletes the character at which the cursor is located.

DD: Deletes the line where the cursor is located.

D: Removes all characters from the beginning of the cursor until the end of the line.

< digital >DD: Deletes the specified number line starting at the current line of the cursor

Recovery (Undo) command:

U: Restores the text that was just deleted.

U: Restores all changes in this edit to the line where the cursor is located.

Linux commands: Delete and restore commands