Is it possible to install just the mongo Shell? I have Docker installed and am running a MongoDB container for my local development on my Mac.  The problem is that I can't connect to said DB easily from CLI.  I have Robo 3T installed, but I would prefer to use the CLI client instead.

Is there a known way to install JUST the mongo shell (command mongo) and not the full DB distribution on OS X?
You can use HomeBrew, see the official MongoDB HomeBrew page.

Just add the tap:

brew tap mongodb/brew


And then after adding the tap from above, you can then install the Mongo shell with:

brew install mongodb-community-shell