There are also help screens within pico. Arrow keys can be used to get around in the file, and the backspace operates as a delete key. If you just type pico, you will be creating a new file. You can just start typing, and the backspace will erase anything you wan t to erase. Some people prefer to use the standard UNIX editor, vi.
Some useful commands follow.
A new file is named this way. Edit last saved version after system or editor crash. How you begin a new file. A Append text after the current line. ESC Return to command mode from input or append mode.