systemctl disable redis.service
-------------------------------------------其他相關命令-----------------------------------------------
systemctl is-enabled servicename.service #查詢服務是否開機啟動
systemctl enable *.service #開機運行服務
systemctl disable *.service #取消開機運行
systemctl start *.service #啟動服務
systemctl stop *.service #停止服務
systemctl restart *.service #重啟服務
systemctl reload *.service #重新加載服務配置文件
systemctl status *.service #查詢服務運行狀態