Re: The primitiveness of pipe

["Roger Peppe" <rog@ohm.york.ac.uk>]

> Of course, pipe(2) is nice, but it would be nice to also have a full duplex
> hook available, too.  I.e., socketpair() or STREAMS pipe.

would a full duplex connection really be useful when used
from a shell ? it's useful between co-operating programs,
certainly, but the power of the pipe is the fact that most
programs conform to the 'stdin = 0, stdout = 1' convention -
any program that can talk down a full duplex connection
is likely to _know_ it's talking that way, in which case it
can probably open the connection itself!
  (if it doesn't, you can probably make do with a simple
pipe running in each direction, anyway)

  rog.