[TUHS] Origins and life of the pg pager
david at kdbarto.org
Mon Jun 15 09:52:45 AEST 2020
My January 1983 printing of the System V Unix* System User’s Manual doesn’t have pg in it.
And my 1986 AT&T The Unix(tm) System Users Manual for System V Release 2 also doesn’t have it.
> On Jun 14, 2020, at 4:37 PM, Mary Ann Horton <mah at mhorton.net> wrote:
> 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 at malbolge.net> -----
>> Date: Sun, 14 Jun 2020 16:37:59 +0200
>> From: Michael Siegel <msi at malbolge.net>
>> To: wkt at 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.
>> 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
>> 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. I've not been able to get
>> the text of any prior POSIX documents. It seems they aren't freely
>> Any ideas on how to proceed?
>>  This one's from Wikipedia (https://en.wikipedia.org/wiki/Pg_(Unix)),
>> but I've also found other sites stating the same.
>>  https://pubs.opengroup.org/onlinepubs/009696899/xrat/xcu_chap04.html
>> ----- End forwarded message -----
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