My memory is that pg was “always” in AIX for the RT. The group of us that worked on BSD convergence deprecated pg in favor of more, if I recall correctly. So far I don’t know how to verify any of this. It is also my memory that PC/IX (Sys III-based?) had pg. If so, ISC may have also included similar pg in both early AIX and PC/IX. Charlie > On Jun 14, 2020, at 8:38 PM, Warner Losh wrote: > > Here's what I've found: > > There's a pg.c, starting in System Vr2. R1 didn't have it. > > It changed in a number of fussy ways, but nothing substantial. > > It grew that copyright notice in SVr3, but the sun one quoted is missing > /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ > that should have been there to, suggesting it was snagged between r2 and r3. > > There's also two other copies of pg as well. There's one in 32V. Though a quick diff suggests little in common with the System Vr2 version. > > There's also one in the BRL/JHU pdp-11 version of unix that is nearly identical to the System Vr2 one. Though it's dated 1985 while the SVr2 one is 1983. Both with a 1984 copyright by AT&T. > > SunOS 4.1.3 shipped with the System Vr2 version. in 5bin. > > Irix 6.5.5 had what looks like the System Vr3 copy in it, though I didn't delve into it. > > So this supports the recollections here that it was from System Vr2... > > However, there's also a Doug Gwen version from the Delaware 1980 Usenix tape submitted by geotronics and on other tapes. Haven't delved on what makes these different from each other though. > > There's one in the NOSC unix we have in the archive, unrelated, it seems to either of these. It's dated in 1979. > > There's still another one on the UNSW tapes from 1978 by Sape Mullender Informatics staff Vrije Universiteit Amsterdam. Also independent. It's on the 4th tape we have in the archive. > > 10th edition also has pg.c, but it's an I/O pager for the kernel. > > Which explains another comment in the System Vr2 one: > * Note: The reason that there are so many commands to do > * the same types of things is to try to accommodate > * users of other paginators. > > Warner > > On Sun, Jun 14, 2020 at 6:36 PM Alan D. Salewski > wrote: > [missed a footnote; fixed] > > On 2020-06-14 20:31:13, Alan D. Salewski spake thus: > > I first encountered 'pg' on an IBM RT[0] running AIX 2.x, whose wikipedia > > page[1] describes it this way: > > > > "AIX is based on UNIX System V with 4.3BSD-compatible extensions" > > > > -Al > > > > [0] https://en.wikipedia.org/wiki/IBM_RT_PC > > [1] https://en.wikipedia.org/wiki/IBM_AIX > > -- > ----------------------------------------------------------------- > a l a n d. s a l e w s k i salewski@att.net > 1024D/FA2C3588 EDFA 195F EDF1 0933 1002 6396 7C92 5CB3 FA2C 3588 > ----------------------------------------------------------------- -- voice: +1.512.784.7526 e-mail: sauer@technologists.com fax: +1.512.346.5240 web: https://technologists.com/sauer/ Facebook/Google/Skype/Twitter: CharlesHSauer