On Fri, Sep 12, 2014 at 07:15:12AM -0400, John Cowan wrote: > Dave Horsfall scripsit: > > > Perhaps so, but I was a bit surprised that FreeBSD (and I include the Mac > > in that) totally rewrote it from a Posix draft, and dropped the pipe. > > So did GNU. FreeBSD head has OpenBSD's dc(1) and bc(1) , which does pipe to dc(1). (I wrote both). -Otto