# mongo

> MongoDB interactive shell client.
> More information: <https://docs.mongodb.com/manual/reference/program/mongo>.

- Connect to a database:

`mongo {{database}}`

- Connect to a database running on a given host on a given port:

`mongo --host {{host}} --port {{port}} {{database}}`

- Connect to a database with a given username; user will be prompted for password:

`mongo --username {{username}} {{database}} --password`

- Evaluate a JavaScript expression on the database:

`mongo --eval '{{JSON.stringify(db.foo.findOne())}}' {{database}}`