https://linuxize.com/post/how-to-install-mongodb-on-ubuntu-18-04/
1. sudo apt-get install nano
2. sudo mkdir /etc/init
Then create file
3. sudo nano /etc/init/mongod.conf
https://askubuntu.com/questions/856073/mongod-unrecognized-service-mongod-service-is-present-already
4. sudo mongod --fork -f /etc/mongod.conf
5. mongo
