Mongo commands

mongo

### Dump a Mongo database

mongodump --host <HOST> --port <PORT> -d <DATABASE> -u <USER> -p <MDP> --gzip

### Restore a Mongo database

mongorestore -d <DATABASE> -u <USER> -p <MDP> --host <HOST> --dir <DUMP_LOCATION> --gzip

### drop all collections

delete_collection_list = ["a", "b", "c"];

delete_collection_list.forEach( function (collection) {
    if (db.getCollectionNames().indexOf(collection)>=0) {
        db.getCollection(collection).drop();
        print("Deleted Collection: "+ collection);
    }
  });