Press the tab key to get a full list of possible commands.Use up and down arrows to go back and forth in the commands history.
There are two important keyboard shortcuts that you should know: For a full list of commands, check out the official Mongo shell page. We will discuss more data manipulation commands in coming tutorials. To get a full list of commands that you can execute on the current database, type db.help() Run the help command to get a list of help options available in the mongo shell. One important command will help you work with the Mongo shell easily: the help command. Use the show dbs command to Show all databases show dbs The forEach(printjson) method will print them with JSON formatting db.employee.find().forEach(printjson) Use the find method to fetch data in a collection. insertOne is the method to insert a document to the collection.ĭb.employee.insertOne( ).db refers to the current database in use.You can create collections and insert data with the following command:
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If you don’t have a database, learn how to create a new database. Run the use command to switch to a different database. Run the db command to see the database you are currently working with db First, we will learn some basic commands that will help you to get started with using MongoDB. Now it’s time to work with the Mongo shell. If you want to connect to a remote server, use the `–host` option with the mongo command, as shown below. If your MongoDB server runs on a different port, you have to explicitly specify it in the command, as shown below: mongo -port 28010īoth of the above commands only work if your MongoDB server is running on the localhost. The above mongo command only works if your MongoDB server runs on the default port, which is 27017. You will get the same result as the above. To do this, go to the installation location and double click on the mongod and mongo applications. If you want, you can run the mongo and mongod without the command prompt. Then type mongo command to run the shell. You can start the server in CMD using the following command. Note: It is required that your server is already running before you connect with it through the shell. Once you’ve downloaded and installed MongoDB, you can use the mongo shell to connect with a MongoDB server that is up and running. Mongo shell is available for all main operating systems, including:
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If you want to install it separately, you can visit the MongoDB download center, from there select the version and package you need, download the archive, and copy it to a location in your file system. It is installed in the same location as the MongoDB server binary. The mongo shell gets installed when you install the MongoDB server. It has some additional features, such as extensibility and embeddability-that is, the ability to use it inside other products such as VS Code. MongoDB has recently introduced a new mongo shell known as mongosh.
Print error messages, so you know what went wrong with your commands.View possible command completions using the tab button after partially entering a command.See previous commands in the mongo shell with up and down arrow keys.Mongo shell uses JavaScript and a related API to issue commands.
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