# HDFS常用命令

\[TOC]

## HDFS 常用命令

### ls

`hdfs dfs ls`

### cat

`hdfs dfs -cat /filepath/filename`

### put: 上传本地文件到HDFS

`hdfs dfs -put /localfilepath/filename /hdfspath/`

例如复制当前文件夹下的`file.txt`文件到`hdfs`中的`/user/bovenson/input`命令为:

```
hdfs dfs -put ./file.txt /user/bovenson/input/
```

### get: 从HDFS获取文件到本地

`hdfs dfs -get /hdfsfilepath/filename /localpath/`

例如复制`hdfs`中`/user/bovenson/input`目录下所有文件, 到当前目录下:

`hdfs dfs -get /user/bovenson/input/* ./`

### mkdir

`hdfs dfs -mkdir input/countword`

### mv

`hdfs dfs -mv input/file* input/countword`

### rm

`hdfs dfs -rm /hdfs/path/to/filename`

 **未完待续...** 


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