disowned vs in background

David Vinayak Wallace Gumby at MIT-MC.ARPA
Mon Mar 31 12:02:00 CEST 1986


    Date: Sat, 29 Mar 86 17:23:33 EST
    From: "Pandora B. Berman" <CENT at AI.AI.MIT.EDU>

	Date: Thu 27 Mar 86 06:47:55-EST
	From: "Mark Becker" <Cent.Mbeck%OZ.AI.MIT.EDU at XX.LCS.MIT.EDU>
	I admit ignorance as well... when I see a "disowned" job on an ITS, its
	usually associated with some username somewhere.
			----------begin forwarded mail----------
	Date: Wed, 26 Mar 86 23:17:29 EST
	From: Richard Barth <BARTH at MC.LCS.MIT.EDU>

	Ignorant question for today...
	What's the difference between running a job in the background and
	disowning it?

    beyond my limited technical ability to describe. someone on this list should
    be able to help you more.

Roughly speaking, a disowned job has no superior nor controlling TTY,
(f'rinstance like COMSAT normally runs).  DDT lets you run jobs in
background, (e.g.  w/ or ) by running them without the TTY and
handling output differently.  Their superior is still DDT.  From ITS's
point of view the only difference between running a job in foreground or
in background is who owns the TTY.

For a more detailed description, do :UUO .DISOWN, .ATTY, etc.

david

PS: bug-its people: what do you think of using BUG-ITS for questions
    like this?  I think it's a good idea, but if it's going to cause the
    fixers of bugs to remove themselves on the grounds of traffic
    levels, then we should have yet another list.


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