Function Keys

While in the line edit mode, functions keys perform as follows:

Move the line pointer down one line on the screen wrapping to the top line (1) from the bottom line (23).

Move the line pointer up one line on the screen wrapping to the bottom line (23) from the top line (1).

Retrieve the next line from the input file. Display this line on the bottom line and roll all other lines up one. The top line is removed from the screen and retained in the scratch area. If you are at the end of the input file, the F3 key causes the editor to wrap around to the beginning of the file (line 1).

Enter page edit mode. Refer to Page Edit Mode section for further explanation.

Begin scrolling forward through the input file. Each new line is displayed on the bottom line, all other lines are rolled up, and the top line is removed from the screen and retained in the scratch area. The ESCAPE sequence terminates the scroll. It is only possible to scroll to the end of the input file. When this point is reached, a beep is generated and the scrolling stops.

Begin scrolling backward through the input file. Each new line is displayed on the top line, all other lines are rolled down, and the bottom line is removed from the screen and retained in the scratch area. The ESCAPE sequence terminates the scroll. It is only possible to scroll to the beginning of the memory buffer. When this point is reached, a beep is generated and the scrolling stops.

Retrieve the previous line from the scratch area. Display this line on the top line and roll all other lines down one. The bottom line is removed from the screen and retained in the scratch area. If you are at the beginning of the file, the system continues to act as if data lines are present. These are null lines and are not placed in the final output file.

Repeat last command executed.

Get previous page of data. Functionally equivalent to a :G- command.

F10

Get next page of data. Functionally equivalent to a :G command.