This has been built using terminal.js : <a href="http://www.masswerk.at/termlib/index.html" rel="nofollow">http://www.masswerk.at/termlib/index.html</a><p>This sort of in browser shell seems to be useful for building stuff like "MongoDB Browser Shell" <a href="http://mongo.kylebanker.com/" rel="nofollow">http://mongo.kylebanker.com/</a>