> The prerequisite for such a way of programming is to use plain universal interchangeable data structures. "Write programs to handle text streams, because tha

> The prerequisite for such a way of programming is to use plain universal interchangeable data structures. "Write programs to handle text streams, because that is a universal interface." - Doug Mcllroy I'm not sure it's a prerequisite though, "as long as the programmers know what they're doing" - as is often the case in Unix as well.