POV-Ray : Newsgroups : povray.off-topic : Is this the end of the world as we know it? : Re: Is this the end of the world as we know it? Server Time
30 Jul 2024 22:19:36 EDT (-0400)
  Re: Is this the end of the world as we know it?  
From: Jim Henderson
Date: 7 Oct 2011 23:50:56
Message: <4e8fc8a0$1@news.povray.org>
On Fri, 07 Oct 2011 15:42:39 -0700, Darren New wrote:

> On 10/7/2011 12:15, Jim Henderson wrote:
>>> Oh, right. I thought that refers only to when you run an X application
>>> that emulates a terminal in a window.
>>
>> That's technically called a 'pseudoterminal' - pts.  "man pts" is
>> interesting reading, if you like that sort of thing.
> 
> No, that's an xterminal or a terminal window. A pts (actually, ptty) is
> a device driver that isn't a terminal but exposes the same ioctls as a
> terminal (and in particular can belong to a process group). Because UNIX
> never figured out the concept of a "login".
> 
> Unless a pts is different from a ptty?

When not logged in on my console or terminals, typing 'who' gets the 
following result:

jhenderson :0           2011-09-08 16:21 (console)
jhenderson console      2011-09-08 16:21 (:0)
jhenderson pts/1        2011-10-06 13:25
jhenderson pts/2        2011-10-07 21:17 (:0.0)
jhenderson pts/5        2011-10-06 13:25
jhenderson pts/3        2011-09-08 16:24 (:0.0)

console, pts/2, and pts/3 are the GUI desktop (identified as display :0 
and :0.0).  pts/1 and pts/5 are currently running under screen.

jhenderson tty2         2011-10-07 21:50

That shows up if I hit alt-f2 and login on that terminal.

That should clear it up. :)

Jim


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