stevew@EN.ECN.PURDUE.EDU (Steven L Wootton) (02/11/90)
Say I log in to my account from two different physical terminals. Each
login process gets its own /dev/tty* (of course). I'll call them terminals
A and B (so I won't confuse myself).
Is there any way that I use terminal B to control the process running on
terminal A? That is, can I get the same i/o on both screens at the same
time? The implication here is that I want the same characters to echo on
each terminal.
I can see why this might be a "bad thing" from a security standpoint, but I
can't see why this should be an issue if I only do this from one of my
logins to another.
My site specialist didn't have any information on this.
The systems I use most include a Gould NP1 (4.2 BSD), an HP 9000/300 (HP-UX
[SVR3]), and an Amdahl of some sort (UTS [SVR3]).
Any shell scripts, C code fragments, RTFM pointers, or explanations as to
why this is impossible are appreciated. Email is fine as well. Thanks.
Steve Wootton
stevew@{en,ei,el}.ecn.purdue.edu
stevew@pur-ee.uucp
stevew%ecn.purdue.edu@purccvm.bitnet