Pty tutorial, please

[John.Ackermann@Dayton.NCR.COM]

(I apologize if this is a repost; we've had some system problems and I don't
know if my original message ever went out.)

I need to learn the basics of pseudo-terminals.  I'm running SysV with some
software that will use the pty driver to (supposedly) allow multiple users to
login to a single, shared, tty device.

I have the pty software and some minimal docs, but I'd feel a lot more
comfortable with some background on what a pseudo-terminal is and what it's
supposed to do.

Anyone interested in giving me (or pointing me to) a short tutorial on the
subject, hopefully tuned to environments (like mine) where the pty isn't a
native part of the system?  Thanks much...
-- 
John R. Ackermann, Jr.						 (513) 445-2966
Law Department, NCR Corporation			     	     VoicePlus 622-2966
Dayton, Ohio					  John.Ackermann at Dayton.NCR.COM
         ***** Amateur Radio: ag9v at n8acv or ag9v at ag9v.AMPR.ORG *****