Mongo(DB) shell interprets JS and it's very useful. Modifying documents, reorganizing scheme, processing queries. I can see the usefulness in a JS shell mainly

Mongo(DB) shell interprets JS and it's very useful. Modifying documents, reorganizing scheme, processing queries. I can see the usefulness in a JS shell mainly because JS is a popular scripting language. Running this on Linux will be difficult because node runs with a very limited set of permissions.