systemctl命令用法
CentOS 7中用systemctl代替了sysinit,虽然开源社区对此相当排斥,但作为运维人员不得不去了解。
命令对比表,以 apache / httpd 为例:
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 | systemctl disable httpd.service |
检查服务状态 | service httpd status | systemctl status httpd.service (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 |
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