As we know MongoDB uses javascript interface for the shell commands.
So, we can really use this feature in a great way – by writing the MongoDB (shell) commands in a javascript (.js file) and execute in single go.
Here I gonna show a simple example.

  print('===== My Demo Script =====');
  print(db.getCollectionNames()); // prints all collection names in respective database
  print(db.myCollection.count()); // prints the count of myCollection collection.

shell command to execute the script -

  mongo 127.0.0.1/my-profile-db --username='username' --password='pwd' mongodb-script.js

mongodb-script.js is the shell script.
Basically this is just a regular mongodb connection command executing the script (after establishing successful connection).

In my next blog I will discuss little more advance use-case – exporting collection records using shell script.

I hope this might help someone.

Please put your comment, if there’s any better way out there.

Cheers!
Salil Kalia
Salil [at] IntelliGrape [dot] com
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