OK, name me something that is along the lines that I am suggesting.

You mean something other than: pick any operating system, any bash, any templating system ( from anywhere or cpan ttree / Template::Tutorial::Web ), and go ?

Sure, here you go, http://mojolicious.org/

:) Is that sufficiently witty?

I can't really point to something already existing because so far , the only distinguishing feature has been, an interactive shell, with one command per line -- already available on every single computer platform

Sure, creating templates on the command line, is not very context sensitive in the way you describe, but then its less verbose than your proposed context sensitive alternative

Actually, what you're suggesting sounds more and more line a gVim Shell plugin, except without the editor features of gVim -- Oh great, we're back to bash and them :)

Oh, but you say the problem, you don't want to bolt a bunch of binaries on top of each other, you want to create an operating system --- no thank, iNoLike iPointless iBusyWork

It actually sounds like you might be satisfied with webkit kitsh / PhantomJS -- can't say I'd use either to create content