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colrm
===
删除文件中的指定列
## 说明
**colrm命令** 用于删除文件中的指定列。colrm命令从标准输入设备读取书记转而输出到标准输出设备。如果不加任何参数则colrm命令不会过滤任何一行
## 选项
```
colrm(参数)
```
### 参数
* 起始列号:指定要删除的指定列
* 结尾列号:指定要删除的结尾列