From: arnold@skeeve.com
To: ron@ronnatalie.com, imp@bsdimp.com
Cc: tuhs@tuhs.org
Subject: [TUHS] Re: FD 2
Date: Mon, 30 Jan 2023 00:50:26 -0700 [thread overview]
Message-ID: <202301300750.30U7oQTh013304@freefriends.org> (raw)
In-Reply-To: <CANCZdfp5PpSjbALMtC39=pZcfWxVrGpAfN8OnD7bYLt-WS3-zA@mail.gmail.com>
> > Where this is done is, as I posted earlier, in /etc/init. Init opens the
> > tty device and dups it to 1 and then invokes either the shell (if we're in
> > single user mode) or getty for interactive mode.
> > This was done in V6 and PWB (1). In V7, init added a second dup for file
> > descriptor 2.
What I really like is how in V8 - V10 /dev/tty was a (sym)link to /dev/fd/3,
and init simply did one more dup call. That eliminated the special tty device
driver and was a lovely generalization / simplification. It's too bad this
was never picked in the commercial Unixes or in Linux.
Arnold
next prev parent reply other threads:[~2023-01-30 7:50 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-20 22:44 [TUHS] " ron minnich
2023-01-20 22:54 ` [TUHS] " G. Branden Robinson
2023-01-20 22:56 ` Rob Pike
2023-01-20 23:11 ` Larry McVoy
2023-01-20 23:14 ` Rob Pike
2023-01-20 23:22 ` Larry McVoy
2023-01-20 23:13 ` Douglas McIlroy
2023-01-21 3:37 ` Jon Steinhart
2023-01-21 15:42 ` Clem Cole
2023-01-21 17:34 ` Warner Losh
2023-01-21 17:50 ` Warner Losh
2023-01-21 18:26 ` Clem Cole
2023-01-21 18:37 ` Warner Losh
2023-01-22 11:05 ` Jonathan Gray
2023-01-22 21:23 ` Warner Losh
2023-01-22 22:10 ` ron minnich
2023-01-23 7:30 ` arnold
2023-01-23 8:32 ` James Johnston
2023-01-23 8:58 ` G. Branden Robinson
2023-01-23 11:49 ` Brantley Coile
2023-01-23 14:25 ` Ronald Natalie
2023-01-23 17:43 ` Brantley Coile
2023-01-23 16:59 ` Douglas McIlroy
2023-01-24 7:21 ` arnold
2023-01-29 18:51 ` Warner Losh
2023-01-29 19:20 ` Ron Natalie
2023-01-29 20:25 ` Warner Losh
2023-01-30 7:50 ` arnold [this message]
2023-01-30 8:09 ` Rob Pike
2023-01-30 15:02 ` Larry McVoy
2023-01-30 15:16 ` Dan Cross
2023-01-30 15:27 ` Larry McVoy
2023-01-30 15:35 ` Dan Cross
2023-01-30 15:45 ` Larry McVoy
2023-01-30 16:09 ` Dan Cross
2023-01-30 16:18 ` Larry McVoy
2023-01-30 19:03 ` Dan Cross
2023-01-30 19:12 ` Brantley Coile
2023-01-30 21:24 ` Larry McVoy
2023-01-30 22:15 ` Rob Pike
2023-01-30 22:50 ` ron minnich
2023-01-30 23:05 ` [TUHS] Child of plan9? (Re: " Bakul Shah
2023-01-31 3:19 ` [TUHS] " Andrew Warkentin
2023-01-30 16:21 ` [TUHS] " Steve Nickolas
2023-01-30 16:27 ` Larry McVoy
2023-01-30 16:32 ` ron minnich
2023-01-30 16:40 ` Clem Cole
2023-01-30 19:55 ` Lawrence Stewart
2023-01-31 21:27 ` Dave Horsfall
2023-01-30 16:48 ` Theodore Ts'o
2023-01-30 16:57 ` Andy Kosela
2023-01-30 17:04 ` Warner Losh
2023-01-30 20:38 ` Theodore Ts'o
2023-01-30 21:01 ` Warner Losh
2023-01-30 21:10 ` Clem Cole
2023-01-30 16:03 ` Bakul Shah
2023-01-30 16:07 ` Larry McVoy
2023-01-30 16:13 ` Bakul Shah
2023-01-30 16:22 ` Steve Nickolas
2023-01-30 16:17 ` Dan Cross
2023-01-30 16:18 ` Ralph Corderoy
2023-01-30 16:41 ` [TUHS] job control (Re: " Bakul Shah
2023-01-30 19:07 ` [TUHS] " Dan Cross
2023-01-30 13:26 ` John Cowan
2023-01-30 14:30 ` arnold
2023-01-30 0:25 ` Phil Budne
2023-01-30 2:08 ` Warner Losh
2023-01-21 18:27 ` Clem Cole
2023-01-22 10:56 ` Jaap Akkerhuis via TUHS
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