Re:Reviving the 1973 Unix Programmer's Manual
by lambda on Sunday November 19, 2017 @11:05PM
(#15737696)
From the rendered manual that is linked from TFA
https://dspinellis.github.io/unix-v4man/v4man.pdf
> This manual was set by a Graphic Systems phototypesetter driven by the troff formatting program operating under the UNIX system. The text of the manual was prepared using the ed text editor.
From where are you quoting this? I don't see it in TFA.