Check whether DEP is present and MDM enrollment is user-approved.

mdm_check.sh

#!/usr/bin/env bash

# Check if a machine was enrolled via DEP (10.13+)
# Show whether a machine has a device enrollment profile (DEP) present (10.13.0+), 
# and if the MDM enrollment is user approved (10.13.4+)
/usr/bin/profiles status -type enrollment

# Checking for a DEP profile on macOS
# Display the DEP profile for a macOS device in 10.13 and above:
sudo /usr/bin/profiles show -type enrollment

# More info about Troubleshooting MDM (Device Enrollment Protocol)
# https://github.com/micromdm/micromdm/wiki/Troubleshooting-MDM