CRUD using the shell

The mongo shell is equivalent to the administration console used by relational databases. Connecting to the mongo shell is as easy as typing the following code:

$ mongosh

Type this on the command line for standalone servers or replica sets. Inside the shell, you can view available databases simply by typing the following code:

$ db

Then, you can connect to a database by typing the following code:

> use <database_name>

The mongo shell can be used to query and update data in our databases. Inserting this document into the books collection can be done like so:

> db.books.insertOne({title: 'mastering mongoDB', isbn: '101'})
 {
  acknowledged: true,
  insertedIds: { '0': ObjectId("627f8178d95a9c017a390229") }

We can then find documents from a collection named books by typing the following code:

> db.books.find()
{ ...