How to obtain Bluetooth ID (OS X)

Option ⌥ + click the Bluetooth menulet:

Using ARD (send UNIX Command) and selecting all the machines you need information from, you can use the following command to obtain the Bluetooth ID along with the computer names in list form in one attempt.

system_profiler SPBluetoothDataType | sed -n "/Apple Bluetooth Software Version\:/,/Manufacturer\:/p" | egrep -o '([[:xdigit:]]{1,2}-){5}[[:xdigit:]]{1,2}'

This command below will also provide the same information.

system_profiler SPBluetoothDataType | sed -n "/Apple Bluetooth Software Version\:/,/Manufacturer\:/p" | tr -s "[\n]" "[ ]" | sed "s:.*Address\: ::g" | sed "s: Manufacturer\:.*::g" | grep "[[:graph:]]"

Both commands can also be used in Terminal to obtain the Bluetooth ID of a single machine.