Scribfile: File and Operating System related Scribble Functionality

http://planet.racket-lang.org/package-source/grettke/scribfile.plt/1/0/planet-docs/scribfile/index.html
Is a little library that provides two forms, one to read a lispy language file into a codeblock and another that makes a system call and renders the results in a verbatim form. Pretty helpful for demos of non-Racket code and who knows what else.
Thanks Racket team, and Danny and Matthew for getting this working.