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mongosh — A new shell for MongoDB, replacement for `mongo`. Note: All connection options can be replaced with

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the mongosh command: A new shell for MongoDB, replacement for mongo. Note: All connection options can be replaced with one string: mongodb://user@host:port/db_name?authSource=authdb_name. More information: <https://www.mongodb.com/docs/mongodb-shell/>.

Solution

mongosh — A new shell for MongoDB, replacement for mongo. Note: All connection options can be replaced with one string: mongodb://user@host:port/db_name?authSource=authdb_name. More information: <https://www.mongodb.com/docs/mongodb-shell/>.

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

mongosh

Connect to a database:

mongosh --host {{host}} --port {{port}} {{db_name}}

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

mongosh --host {{host}} --port {{port}} --username {{username}} --authenticationDatabase {{authdb_name}} {{db_name}}

Evaluate a JavaScript expression on a database:

mongosh --eval '{{JSON.stringify(db.foo.findOne())}}' {{db_name}}

Code Snippets

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

mongosh

Connect to a database

mongosh --host {{host}} --port {{port}} {{db_name}}

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

mongosh --host {{host}} --port {{port}} --username {{username}} --authenticationDatabase {{authdb_name}} {{db_name}}

Evaluate a JavaScript expression on a database

mongosh --eval '{{JSON.stringify(db.foo.findOne())}}' {{db_name}}

Context

tldr-pages: common/mongosh

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