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service
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===
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控制系统服务的实用工具
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## 补充说明
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**service命令** 是Redhat Linux兼容的发行版中用来控制系统服务的实用工具，它以启动、停止、重新启动和关闭系统服务，还可以显示所有系统服务的当前状态。
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### 语法
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```
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service(选项)(参数)
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```
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### 选项
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```
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-h：显示帮助信息；
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--status-all：显示所服务的状态。
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```
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### 参数
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* 服务名：自动要控制的服务名，即`/etc/init.d`目录下的脚本文件名；
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* 控制命令：系统服务脚本支持的控制命令。
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### 实例
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当修改了主机名、ip地址等信息时，经常需要把网络重启使之生效。
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```
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service network status
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配置设备：
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lo eth0
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当前的活跃设备：
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lo eth0
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service network restart
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正在关闭接口 eth0： [ 确定 ]
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关闭环回接口： [ 确定 ]
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设置网络参数： [ 确定 ]
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弹出环回接口： [ 确定 ]
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弹出界面 eth0： [ 确定 ]
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```
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重启mysql
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```
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service mysqld status
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mysqld (pid 1638) 正在运行...
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service mysqld restart
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停止 MySQL： [ 确定 ]
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启动 MySQL： [ 确定 ]
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```
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<!-- Linux命令行搜索引擎：https://jaywcjlove.github.io/linux-command/ -->
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