This script enables you stop and start Symantec Endpoint Protection on OS X. For information on starting and stopping SEP on OS 10.15 (Catalina), please see below.
sudo curl https://gist.githubusercontent.com/steve-jansen/61a189b6ab961a517f68/raw/sep -o /usr/local/bin/sep
sudo chmod 755 /usr/local/bin/sep
sudo chown root:staff /usr/local/bin/sep