Adding and Deleting Text in vi
Adding and deleting text in vi is a bit more complicated than doing the same in pico. Whereas in pico, you basically just place your cursor where you want to make changes, vi has a whole slew of commands that you use to specify where the changes should occur. (Tables 4.1, 4.2, and 4.3 list only a very few of your options.) Plus, to issue the commands, you have to switch to command mode.
To Add or Delete Text in vi: