How to stop mongo DB in one command

Question

I need to be able to start/stop MongoDB on the cli. It is quite simple to start:

./mongod

But to stop mongo DB, I need to run open m

Answer 1

Building on the answer from stennie:

mongo --eval "db.getSiblingDB('admin').shutdownServer();quit()"

I found that mongo was trying to reconnect to the db after the server shut down, which would cause a delay and error messages. Adding quit() after shutdown speeds it up and reduces the messages, but there is still one.

I also want to add context - I'm starting and stopping mongod as part of test cases for other code, so registering as a service does not fit the use case. I am hoping to end up with something that runs on all platforms (this tested in windows right now). I'm using mongod 3.6.9