From: [email-masked]
Date: Fri, 12 Mar 1993 15:26:58 -0500

re: B command

in Boyd's original implmentation the pipe was in the home
directory, but i moved to /tmp to prevent network accesses
on the pipe and to have it automatically removed after a
system or program crash.

scott's observation confirms my experience: the location
of the named pipe is site-dependent.  i'll update the README
file accordingly.

of course, in plan 9 we avoid the problem completely: by convention
the pipe is placed in a convenient place in the namespace.