Multics had modes per file (https://multicians.org/fjcc4.html) but i don't
know about the origins. the simpler approach of owner/group/other is a
purely Unix creation and i would bet Ken Thompson is behind it all.

i would love to know more.


-rodri

On Wed, Jul 31, 2019, 12:00 PM Stephan Han. <xenonelive@gmail.com> wrote:

> Hello Unix enthusiasts.
>
> I'd like to know who or the group of people behind implementing this
> filesystem permission system.
> Since we are using this system for nearly 40 years and it addresses all
> the aspects of the permission matter without any hustle.
> I'm inspired to know who/how came up with this theory?
> Also if it derived from somewhere else or If there's an origin story about
> this, it would be worth to share.
>
> Cheers.
> Stephan
>
> --
> No When
>