Peek/Spy allows terminal-logging.

   Terminal-logging makes a disk log file of all output sent to the terminal.

   Terminal-logging on both VAX and AXP is done using the SAVE_SCREEN
   subcommand. See the PEEK Subtopic: Commands SAVE_SCREEN.

   Terminal-log files can be made permanent so the user cannot turn off
   the logging. See the PEEK Subtopic: Commands SAVE_SCREEN /PERMANENT.