On Sun, 20 Oct 2019 19:31:55 -0700 Ken Thompson via TUHS <tuhs at minnie.tuhs.org> wrote: > i was writing the small utilities for the first > pdp-11 unix. (rm ls date ....) > > so, cd was next. > > % pwd > /usr/ken > % cd /tmp > % pwd > /usr/ken > > Aha! It was probably more like this: % pwd /usr/ken ? Aha!