Sinatra-Rscript is a project mainly written in Ruby, it's free.
Sinatra-Rscript is a Sinatra application which executes Ruby Scripting Files (RSF).
Sinatra-Rscript is a Sinatra application which includes a Ruby Script File (RSF) handler.
prerequisites gem install rcscript
running rackup config.ru or ruby sinatra_rscript.rb
Resources: http://snippets.dzone.com/user/jrobertson/tag/sinatra http://rscript.heroku.com http://rscript.rorbuilder.info