# Commands

| Command                                                                    | Description                                                                |
| -------------------------------------------------------------------------- | -------------------------------------------------------------------------- |
| `db.collection.find()`                                                     | Returns all documents in the collection                                    |
| `db.collection.find({<field>:<value>})`                                    | Returns all documents where the field matches the specified value          |
| `db.collection.find({$and:[{<field1>:<value1>},{<field2>:<value2>}]})`     | Returns all documents where both the fields match their respective values  |
| `db.collection.find({$or:[{<field1>:<value1>},{<field2>:<value2>}]})`      | Returns all documents where either field matches its respective value      |
| `db.collection.find().sort({<field>:1})`                                   | Returns all documents sorted by the specified field in ascending order     |
| `db.collection.find().sort({<field>:-1})`                                  | Returns all documents sorted by the specified field in descending order    |
| `db.collection.find().limit(<num>)`                                        | Returns only the first `<num>` documents                                   |
| `db.collection.find().skip(<num>)`                                         | Skips the first `<num>` documents and returns the rest                     |
| `db.collection.insertOne({<field>:<value>})`                               | Inserts a new document into the collection                                 |
| `db.collection.insertMany([{<field1>:<value1>},{<field2>:<value2>}])`      | Inserts multiple documents into the collection                             |
| `db.collection.updateOne({<field>:<value>},{$set:{<field>:<new_value>}})`  | Updates the first document that matches the query with the new field value |
| `db.collection.updateMany({<field>:<value>},{$set:{<field>:<new_value>}})` | Updates all documents that match the query with the new field value        |
| `db.collection.deleteOne({<field>:<value>})`                               | Deletes the first document that matches the query                          |
| `db.collection.deleteMany({<field>:<value>})`                              | Deletes all documents that match the query                                 |
| `db.collection.aggregate([{<stage>},{<stage>}])`                           | Performs a multi-stage aggregation operation on the collection             |

Note: Replace `<field>`, `<value>`, `<new_value>`, `<num>`, `<stage>`, and `collection` with the actual field, value, new value, number, stage, and collection names, respectively.