> On Thu, Apr 18, 2013 at 12:27 AM, Dave Crocker <dhc2 at dcrocker.net> wrote: > I've heard claims that setuid was also an innovation in unix. No idea of the construct's history. DMR/Bell Labs hold the patent (US4135240) on setuid: http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=4135240&KC=&FT=E&locale=en_EP --lyndon