systemctl 常用命令

命令	说明	示例
systemctl start [服务名]	启动服务	systemctl start nginx
systemctl stop [服务名]	停止服务	systemctl stop nginx
systemctl restart [服务名]	重启服务	systemctl restart nginx
systemctl reload [服务名]	重新加载服务配置	systemctl reload nginx
systemctl status [服务名]	查看服务状态	systemctl status nginx
systemctl enable [服务名]	开机自启服务	systemctl enable nginx
systemctl disable [服务名]	取消开机自启	systemctl disable nginx
systemctl is-enabled [服务名]	查看服务是否开机自启	systemctl is-enabled nginx
systemctl is-active [服务名]	查看服务是否激活	systemctl is-active nginx
systemctl list-units --type=service	列出所有已加载服务	systemctl list-units --type=service
systemctl list-unit-files --type=service	列出所有服务及自启状态	systemctl list-unit-files --type=service
systemctl daemon-reload	重新加载单元文件	systemctl daemon-reload
systemctl mask [服务名]	服务彻底禁止启动	systemctl mask nginx
systemctl unmask [服务名]	取消服务mask限制	systemctl unmask nginx
systemctl reload-or-restart [服务名]	配置变更自动重载或重启	systemctl reload-or-restart nginx
systemctl --failed	查看失败的服务	systemctl --failed
systemctl get-default	查看默认启动级别(target)	systemctl get-default
systemctl set-default [target]	设置默认启动级别(target)	systemctl set-default multi-user.target
systemctl isolate [target]	切换系统运行级别	systemctl isolate rescue.target
systemctl poweroff	关机	systemctl poweroff
systemctl reboot	重启	systemctl reboot
systemctl suspend	挂起	systemctl suspend
systemctl hibernate	休眠	systemctl hibernate
systemctl list-dependencies [服务名]	查看服务依赖	systemctl list-dependencies nginx