쉘 스크립트 작성 중 shutting: command not found가 무슨 의미인가요??

function F_CASE_CASE(){
        case $MODULE_NAME in
                NCIA_Agent)
                        `service ncia-agent-dbms $1`
                        `service ncia-agent-web $1`
                        ;;
                NCIA_AgentController)
                        `service ncia-agentcontroller $1`
                        ;;
                NCIA_DataCollector)
                        `service ncia-datacollector $1`
                        ;;
                NCIA_DataManager)
                        `service ncia-datamanager $1`
                        ;;
                *)
                        ;;
        esac
}
 
function F_CASE(){
        case $1 in
                REGIST)
                        `bash $ROOT_HOME/bin/install.sh $ROOT_HOME`
                        ;;
                START)
                        F_CASE_CASE "START"
                        ;;
                STOP)
                        F_CASE_CASE "STOP"
                        ;;
                *)
                        ;;
        esac
}