Lisp as a shell language

has anyone here used CL or Scheme as a shell to create/move/delete directories and files. List directory contents, change directories, all the things you do with a shell language. I know emacs has most of this functionality, but I want to be able to use Lisp alone.

>>17
Nice idea. But what about pipes? Maybe we should support "|". For example ps 'a | grep 'o "bash" | kill would expand into (kill (grep 'o bash (ps 'a)))