Now type a few short lines of text, ending every line with a Return. Characters you type appear to the left of the cursor and push any existing characters to the right. For the moment, you can correct your mistakes by backspacing and retyping a line before you press Return. Later you will learn how to edit the text you entered.
When you finish entering text in paint, press Esc to return to command mode. The cursor moves back onto the last character entered. Now you can enter more vi commands.
If vi seems to act unpredictably, make sure that you are not in "Caps Lock" mode, which would cause your entries to be all capital letters. On some systems, the F1 key (which is usually located next to the Esc key) acts as the Caps Lock. Pressing this key instead of Esc is a common error.
Occasionally you may need to instruct vi to clear or redraw the screen to eliminate, for example, extraneous system messages. To redraw the screen, enter command mode and press Ctrl-L. This is similar to the OpenWindows Refresh command.