AGRISCS@umcvmb.missouri.edu (Don Ingli) (11/30/89)
YES IT IS POSSIBLE. The way I have seen it done is at shell level and curses... With curses, you have FULL tty I/O control. It even comes with functions for MULTIPLE ttys. But remember, root can read all (big brother) but if your permissions are right the other users (little brothers) can't see a thing..... The most famous way is via KSH k-shell... You can modify and rewrite it. And if you want, rename /bin/ksh to /bin/sh .. who knows, maybe your sysadm is watching you read this letter... :) if you want a pretty good demo... login to 2 ttys and from ttyn1 type tee /dev/ttyn2 where n1 is your first tty and n2 the 2nd ex tty32.. type something in and hit enter... walla... Look up curses in a manual and become familiar with shells and signals. REMEMBER: They don't call the root (SUPER user) for nothing!!!! co-big-brother (sysadm) for AT&T 3b2/400 Curses programmer until death or I get the AT&T x-windows!!! :) +-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+ | DON INGLI | | UNITED STATES DEPARTMENT OF AGRICULTURE - SOIL CONSERVATION SERVICE | | WORK: (314) 875-5344 FAX: (314) 875-5335 | | | | bitnet: agriscs@umcvmb.bitnet internet: agriscs@umcvmb.missouri.edu | | attmail: attmail!attbl!arpa!umcvmb.missouri.edu!agriscs | | | | ALL OPINIONS IN THIS NOTE ARE OF MY OWN AND DO NOT REPRESENT THE | | FEDERAL GOVERNMENT OR THE UNIVERSITY OF MISSOURI-COLUMBIA | +-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+