Command line to find bluetooth device's MAC address Is there a way to get the MAC address of the Bluetooth device in my Mac? I am using a MacBook Pro running macOS High Sierra. I am looking mainly for macOS but the command could also be for another UNIX or Linux machine.

It should be the same as the one shown when Option clicking the Bluetooth icon in the status menus in the Menu Bar.
Execute the following command line in macOS:

system_profiler SPBluetoothDataType

The output will print details about the build-in Bluetooth device along with the MAC address. The output will also list the paired devices along with their MAC addresses.