1.列出安装的unit files
systemctl list-unit-files2.设置开机启动
systemctl enable postgresql.service3.禁用开机启动
systemctl disable postgresql.service4.查看服务状态
systemctl status postgresql.service5.停止服务
systemctl stop postgresql.service 6.开启服务
systemctl start postgresql.service 7.重启服务
systemctl restart postgresql.serviceTo be continued.....