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systemctl命令用法 (转)

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以Apache Httpd为例


①某服务自动启动
 旧 → chkconfig --level 3 httpd on
 新 → systemctl enable httpd.service

 

②使某服务不自动启动
 旧 → chkconfig --level 3 httpd off
 新 → systemctl disable httpd.service

 

③检查服务状态
 旧 → service httpd status(服务详细信息)
 新 → systemctl status httpd.service 或 journalctl -xn(服务详细信息)
        systemctl is-active httpd.service (仅显示是否 Active)

 

④显示所有已启动的服务
 旧 → chkconfig --list
 新 → systemctl list-units --type=service

 

⑤启动某服务
 旧 → service httpd start
 新 → systemctl start httpd.service

 

⑥停止某服务
 旧 → service httpd stop
 新 → systemctl stop httpd.service

 

⑦重启某服务
 旧 → service httpd restart
 新 → systemctl restart httpd.service

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