EXIT returns the user to the DCL command level from /CONTINUOUS mode.
The original terminal characteristics are restored and the terminal's
screen is cleared. The DCL prompt appears in the upper left corner of
the screen.
Note: CONTROL-Z has the same effect as typing EXIT.
CONTROL-C restores the original terminal characteristics.
However, the screen is not cleared and the DCL prompt
will appear in the lower left corner of the screen.
CONTROL-Y causes SHOW CLUSTER to exit immediately. Terminal
characteristics are restored upon image run-down.