The logout procedure is both shell- as well as system- (eg: DXCERN, ULTRIX, SUN etc..) dependent.
You can logout of the C shell (see Chapter 2) within DXCERN with:
logout
To logout of the Bourne shell use:
exit
If you have any other processes (which may have been created by mistake) you will be informed that you have stopped jobs. You can continue to enter logout repeatedly until each of these processes is terminated.