Master essential SAP S/4HANA instance operations on Linux and UNIX systems. Learn the modern sapcontrol command interface that replaced deprecated startsap/stopsap scripts. Execute system startup, shutdown, and monitoring using web service functions with the SAP Start Service (sapstartsrv). Monitor instance status through GetProcessList color-coded indicators and verify SAP processes using native OS commands like ps -ef. Utilize the dpmon utility for advanced troubleshooting when SAP GUI access fails. This course contains essential skills for SAP administrators managing dialog instances, work processes, and system operations.