What I find interesting is that Plan 9's "who" did not. It's just
ls /proc | sed '{grep out usernames}' | sort -u
so it's pretty specific to whatever machine it runs on, as opposed
to who's logged into the installation you've run it on.
On another note, on Tenth Edition Unix, when you logged in from a
Blit, something would get pipefiled[1] over your tty and wrap writes
from new opens in something that puts it to a window-manager window.
Possible because of not having name spaces for files.
ls /proc | sed '{grep out usernames}' | sort -u
so it's pretty specific to whatever machine it runs on, as opposed to who's logged into the installation you've run it on.
On another note, on Tenth Edition Unix, when you logged in from a Blit, something would get pipefiled[1] over your tty and wrap writes from new opens in something that puts it to a window-manager window. Possible because of not having name spaces for files.
[1] 'Mounted stream' in http://man.cat-v.org/unix_10th/2/fmount