Quit the vi editor without saving your changes

To quit the vi editor without saving any changes you've made:

1. If you are currently in insert or append mode, press Esc.
2. Press : (colon). The cursor should reappear at the lower left corner of the screen beside a colon prompt.
3. Enter the following:

    q!

   This will quit the editor, and all changes you have made to the document will be lost.