You may be interested in ripl (https://github.com/cldwalker/ripl https://github.com/cldwalker/ripl) which is modular enough to serve as a base for more complex

You may be interested in ripl (https://github.com/cldwalker/ripl https://github.com/cldwalker/ripl) which is modular enough to serve as a base for more complex shells. It has already been used to create a web shell (http://github.com/cldwalker/nirvana http://github.com/cldwalker/nirvana), a ruby/system shell (https://github.com/janlelis/fresh https://github.com/janlelis/fresh) and a js shell (http://github.com/cldwalker/ripl-johnson http://github.com/cldwalker/ripl-johnson).