In-reply-to: Msg of Tue 1 Oct 85 10:57:17-PDT from Andy Freeman <ANDY at SU-SUSHI.ARPA>
VMS also has redirectable input/output.
$ define/user sys$output ...
$ define/user sys$input ...
$ define/user sys$error ...
$ define/user sys$command ...
one might wonder what DEC COMMON LISP does in this case.