the ENTER key after typing a command, MS-DOS copies the command into a “buffer” memory. By using the function keys, you can edit and reuse the command without having to retype the entire line.

- Fl key

Copies one character at a time from the buffer to the command line

-F2 key

Copies the entire buffer up to the next character you type

- F3 key

Copies the entire buffer to the command line

- F4 key

The opposite of F2, deletes all characters from the buffer up to, but not including, the next character you type

-F5 key

Moves the current line you are typing into the buffer without ENTERing it

-F6 key

Places an “end-of-file” marker when you copy from the monitor to a disk file

- ESC key

Cancels the current command line without changing the buffer

-INS key

Inserts characters into the command line as you copy characters from the buffer

- DEL key

Deletes characters from the buffer

4-8 Using MS-DOS With Your Computer