From: Mary Ann Horton <mah@mhorton.net>
To: Michael Siegel <msi@malbolge.net>
Cc: tuhs@minnie.tuhs.org
Subject: Re: [TUHS] Fwd: Origins and life of the pg pager
Date: Sun, 14 Jun 2020 16:37:35 -0700 [thread overview]
Message-ID: <fafa3953-6dac-257a-ceca-b6c7a82eb482@mhorton.net> (raw)
In-Reply-To: <20200614225208.GB6122@minnie.tuhs.org>
Eric Shienbrood at Berkeley wrote "more" around 1979, and it was the
standard BSD pager. It was inspired by the --More-- option in the ITS
terminal driver at MIT.
"pg" did not come from Berkeley. My recollection is that it came from
AT&T in response to requests to include "more", which was in exptools at
Bell Labs but not in any standard AT&T system. "pg" is not in my UNIX
5.0 manual, but it's in my SVID with the comment "New in System V
Release 2".
UNIX 5.0 was the AT&T internal pre-release of System V. SVID was the
System V Interface Definition from AT&T.
Mary Ann
On 6/14/20 3:52 PM, Warren Toomey wrote:
> All, I just received this e-mail from a non-TUHS list member. If you have
> an answer for Michael, could you reply to him and pop a cc here as well?
>
> Thanks, Warren
>
> ----- Forwarded message from Michael Siegel <msi@malbolge.net> -----
>
> Date: Sun, 14 Jun 2020 16:37:59 +0200
> From: Michael Siegel <msi@malbolge.net>
> To: wkt@tuhs.org
> Subject: Origins and life of the pg pager
>
> Hi there,
>
> I'm trying to find out where the pg pager originated.
>
> The research I've done so far vaguely suggests it came with one of the
> System V versions, though Internet claims it to be “the name of the
> historical utility on BSD UNIX systems” occasionally.[1]
>
> I think System V because the source code of pg.c in the util-linux
> package says that this utility is “a clone of the System V CRT paging
> utility.”[2]
>
> I'd also like to find out when pg was discarded and if it ever made it
> into POSIX before that. Linux still has pg to the very day, but none of
> the current major BSDs (Free/Net/Open) offer it. POSIX 2001, 2004
> Edition lists it as an excluded utility.[3] I've not been able to get
> the text of any prior POSIX documents. It seems they aren't freely
> available.
>
> Any ideas on how to proceed?
>
>
> Best
> Michael
>
>
> [1] This one's from Wikipedia (https://en.wikipedia.org/wiki/Pg_(Unix)),
> but I've also found other sites stating the same.
>
> [2]
> https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/tree/text-utils/pg.c
>
> [3] https://pubs.opengroup.org/onlinepubs/009696899/xrat/xcu_chap04.html
>
> ----- End forwarded message -----
next prev parent reply other threads:[~2020-06-14 23:38 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-14 22:52 Warren Toomey
2020-06-14 23:37 ` Mary Ann Horton [this message]
2020-06-14 23:52 ` [TUHS] " David Barto
2020-06-15 0:06 ` George Michaelson
2020-06-15 0:31 ` Alan D. Salewski
2020-06-15 0:35 ` Alan D. Salewski
2020-06-15 1:38 ` Warner Losh
2020-06-15 1:47 ` Larry McVoy
2020-06-15 2:38 ` Alec Muffett
2020-06-15 2:46 ` Alec Muffett
2020-06-15 2:26 ` Charles H. Sauer
2020-06-15 14:03 ` Mary Ann Horton
2020-06-15 20:19 ` Greg A. Woods
2020-06-15 20:50 ` Mary Ann Horton
2020-06-15 0:32 ` [TUHS] Fwd: " Nemo Nusquam
2020-06-15 5:41 ` Lars Brinkhoff
2020-06-15 13:56 ` Clem Cole
2020-06-15 14:15 ` Mary Ann Horton
2020-06-15 14:56 ` Clem Cole
2020-06-15 15:04 ` Richard Salz
2020-06-15 16:14 ` Clem Cole
2020-06-15 15:45 ` Lars Brinkhoff
2020-06-15 19:08 ` Lars Brinkhoff
2020-06-21 18:49 ` Michael Siegel
2020-06-22 0:35 ` Greg A. Woods
2020-06-22 16:24 ` Derek Fawcus
2020-06-22 21:33 ` Rob Pike
2020-06-22 21:58 ` Kurt H Maier
2020-06-22 21:59 ` [TUHS] " Bakul Shah
2020-06-22 22:43 ` Steffen Nurpmeso
2020-06-25 1:50 ` Theodore Y. Ts'o
2020-06-25 21:31 ` Steffen Nurpmeso
2020-07-05 1:34 ` Dave Horsfall
2020-06-18 12:49 ` [TUHS] Fwd: " Michael Siegel
2020-06-21 22:40 Noel Chiappa
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