mongo

The legacy MongoDB shell. See mongosh for the new shell. Note: all connection options can be replaced with one string: mongodb://user@host:port/db_name?authSource=authdb_name. More information: https://docs.mongodb.com/manual/reference/program/mongo.

• Connect to a local database on the default port (mongodb://localhost:27017):

mongo

• Connect to a database:

mongo --host host --port port db_name

• Authenticate using the specified username on the specified database (you will be prompted for a password):

mongo --host host --port port --username username --authenticationDatabase authdb_name db_name

• Evaluate a JavaScript expression on a database:

mongo --eval 'JSON.stringify(db.foo.findOne())' db_name