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From: weil@dataio.UUCP
Newsgroups: comp.unix.wizards
Subject: Re: Help needed with slave terminals (4.3bsd)
Message-ID: <1303@dataio.Data-IO.COM>
Date: Fri, 15-May-87 16:10:03 EDT
Article-I.D.: dataio.1303
Posted: Fri May 15 16:10:03 1987
Date-Received: Sat, 16-May-87 15:36:42 EDT
References: <407@litp.UUCP>
Organization: Data I/O - FutureNet Corp., Redmond, WA
Lines: 7

Simple, we do this all the time for developing screen oriented software.
On the slave terminal simply run a small program which closes stdin
and stout and sleeps forever.  (If you need, you can also set it up to 
ignore interrupts.)

Then any other program may open /dev/ttyxx and read and write from/to this
terminal.