Hello; I hope this question isn't too vague, but what exactly does tty
mean and what is ttys0 or ttyp2 or whatever? I know "tty" is a leftover
term from days of teletype machines, but what are UNIX systems referring
to when they say user johndoe on machine.domain ttyxx? Is it just an
arbitrary number used to keep track of how many terminals are connected?
Or does it have some meaningful use?
Second... this happens to me all the time... I'll log into my unix host
remotely; and then for some reason or the other, the connection is lost
before I can log out (say, my mac crashes or whatever.) Then I login
again, and finger myself - and the machine says that I'm on twice, once
from each of the two tty's I logged in from. Is there anyway I can access
that "hidden" shell? It logs out by itself once its been idle for the set
time, but can I somehow "kill" it without leaving it on?
any help/comments would be greatly appreciated.