# File lib/session.rb, line 616
      def spawn command
        ipath = tmpfifo
        opath = tmpfifo
        epath = tmpfifo

        cmd = "#{ command } < #{ ipath } 1> #{ opath } 2> #{ epath } &"
        system cmd 

        i = open ipath, 'w'
        o = open opath, 'r'
        e = open epath, 'r'

        [i,o,e]
      end