Arthur Krewat <krewat@kilonet.net>:
> Also, I don't think it's been mentioned, but there's the setuid bit on
> directories - otherwise known as the sticky bit. When set, even if you
> have rights to "write" the directory (meaning, delete files), you can't
> delete those owned by other users. Useful for /tmp
Also a SunOS invention, IIRC.
Nope, much older. It was a BSDism -- Cory Hall 11/70 actually (V6 originally) - wnj probably, but it may have been somebody like Asa Romberger or Bob Kriddle who were the admins. VAXen distributions picked it up and Sun got it from there.