Login to the operating system. Go to the installed path /bin. Normally, the path will be (UNIX/Linux)
/usr/sap/SID/<Wily-Version>/bin
Stop
./EMCtrl.sh stop
Start
./EMCtrl.sh start
Status
./EMCtrl.sh status
Start & Stop Wily Introscope Manager (EM)
We could see an error in Wily Introscope log file : ./EMCtrl.sh status: Enterprise Manager stopped