Outputs True/False based on the device "Supervised" status (determined by whether the device has gone through Device Enrollment provisioning).

Supervised.sh

#!/bin/bash

if /usr/libexec/mdmclient QuerySecurityInfo | grep -m1 EnrolledViaDEP | grep 1 >&/dev/null; then
    echo "True"
else
    echo "False"
fi

This is particularly useful now that macOS Catalina differentiates between UAMDM and "Supervised" Mac devices. For instance, the new Get the Bypass Code for Activation Lock is only compatible with Supervised devices (https://developer.apple.com/documentation/devicemanagement/get_the_bypass_code_for_activation_lock).