MongoDB Getting started with MongoDB Execution of a JavaScript file in MongoDB
Example
./mongo localhost:27017/mydb myjsfile.js
Explanation:
This operation executes the myjsfile.js script in a mongo shell that connects to the mydb database on the mongod instance accessible via the localhost interface on port 27017. localhost:27017 is not mandatory as this is the default port mongodb uses.
Also, you can run a .js file from within mongo console.
>load("myjsfile.js")
