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command
===
调用并执行指定的命令
## 补充说明
**command命令** 调用指定的指令并执行命令执行时不查询shell函数。command命令只能够执行shell内部的命令。
### 语法
```
command(参数)
```
### 参数
指令:需要调用的指令及参数。
### 实例
使用command命令调用执行`echo Linux`,输入如下命令:
```
command echo Linux #调用执行shell内部指令
```
上面的命令执行后,将调用执行命令`echo Linux`,其执行结果如下:
```
Linux
```