Steve Johnson: This reminds me that someone at BTL threw together a "TSO Shell". It was a wrapper around /bin/sh that slept for 10 seconds before executing each line... ===== And after each command exited. Discarding anything typed ahead during the sleep, of course. And printed all-upper-case IEFCRAPNONSENSE messages even when a command exited successfully. I think I still have a copy somewhere. It dates from the 6/e era, so it would need a lot of work to compile and run on a modern system. Occasionally I think of converting it to ISO and POSIX even though that seems contradictory somehow. Norman Wilson Toronto ON