And despite what I wrote before, I was confusing the Plan 9 printed manuals with the Unix v10 ones, perhaps because they both used the same publisher. I was not principal in the v10 books.

Someone should start a mailing list so we can record the history for those who can't remember what happened or weren't there.

-rob

On Sun, Feb 16, 2025 at 12:12 AM Douglas McIlroy <douglas.mcilroy@dartmouth.edu> wrote:

Although I edited the v7 through v10 manuals, I have no recollection of why "system" crept into the title between v7 and v8. Resistance to trademark edicts did grow. In v10, the cover and the man pages proclaimed "Unix". However, the fossilized spelling, "UNIX", still appeared in the introduction to Volume 1 and scattered throughout Volume 2.

Doug