9front does that without emulating a terminal. Grep, cc, awk, walk (no find and magical incantations with -print0 there), functions instead of aliases on rc, better lists () in rc, and so on. And you can launch these command inside your graphical editor such as sam or better, Acme. And even as a pipe to selections.
Ok, I'll bite: how? What's the secret sauce? And can I use it with some random perl program I downloaded that prints horoscopes?