MongoDB uses sh or JS files

Sometimes we need to manually insert some data into the database, but if the data format itself is more complex, and need to insert multiple data, the direct sub-mongodb Shell to write JS code like the execution of commands, although simple rough, but for more complex data situation is very inconvenient, and write JS code on the shell is not easy to modify data and so on.

So if you want to execute the JS code to write a script, need to insert, modify the data, only need to execute this script, and modify the JS code is also very convenient

For example, insert a piece of data into the test collection under the TestDB database,

Create a new Insert.js file (the file name is defined) under any path, as follows:

var url= "Mongodb://localhost:27019/testdb"; var db = connect (URL);d b.test.insert ({"Name": "User5"});

Perform:

# MONGO Insert.js MongoDB Shell version v3.4.14connecting to:mongodb://127.0.0.1:27017mongodb server Version:3.4.14conn ecting To:mongodb://localhost:27019/testdbmongodb Server version:3.4.14

View results:

Test-set:primary> Db.test.find () {"_id": ObjectId ("5ad844efa46a748c5a90fe41"), "name": "user1"} {"_id": ObjectId (" 5AD8608A8DE9DF222390480E ")," name ":" User2 "} {" _id ": ObjectId (" 5ad860998de9df222390480f ")," name ":" User3 "} {" _id ": ObjectId ("5ad860ba349d15f7f4a9ce9b"), "name": "User4"} {"_id": ObjectId ("5ad860be8c80e45b6ab87b90"), "name": "User4"  } {"_id": ObjectId ("5ad860c0049eccbc93be69b0"), "name": "User4"} {"_id": ObjectId ("5ad8611c7d1d4c1131c1a424"), "name" : "User4"} {"_id": ObjectId ("5ad8625a16805ab661da90ea"), "name": "User5"}

The data was inserted successfully.

You can also write a shell script,

Use Testdb;db.test.insert ({"Name": "User4"});

Perform:

# MONGO--port 27019 < test.sh MongoDB Shell version v3.4.14connecting To:mongodb://127.0.0.1:27019/mongodb Serv Er version:3.4.14switched to db testdbwriteresult ({"ninserted": 1}) bye

Note: The execution shell script and the JS script are different, the JS file defines the URL address of the mongdb. The shell script is to input the contents of the file into the command line. A statement such as use db_name cannot be used in a JS script.

MongoDB uses sh or JS files