Linux命令(007) -- systemctl

systemctl命令是系统服务管理指令，它实际上是将service和chkconfig两个命令组合到一起。

任务	旧指令	新指令
使某服务自动启动	chkconfig --level 3 httpd on	systemctl enable httpd.service
使某服务不自动启动	chkconfig --level 3 httpd off	ystemctl disable httpd.service
检查某服务状态	service httpd status	systemctl status httpd.service(显示服务详细信息) systemctl is -active httpd.service(仅显示是否Active)
显示所有已启动的服务	chkconfig --list	systemctl list-units --type=service
启动某服务	service httpd start	systemctl start httpd.service
停止某服务	service httpd stop	systemctl stop  httpd.service
重启某服务	service httpd restart	systemctl restart httpd.service