$ PEEK/SAVE_SCREEN/LOG /[NO]NEW_FILE

   Used to specify that a new terminal-logging file should be started.
   Any current terminal-logging file is closed.

   Example:

   $ PEEK/SAVE_SCREEN/LOG=LOG.LOG     ! Start logging to LOG.LOG.

   $ PEEK/SAVE_SCREEN/LOG=NEWLOG.LOG/NEW_FILE
                                      ! Close LOG.LOG and start
                                      ! logging to NEWLOG.LOG.

   The new file will contain the full initial contents of the screen
   at the time the command is executed.