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                語法格式 ```bash hadoop fs <args> ``` 完整版 ```bash hadoop fs -ls hdfs://hadoop1:9000/ ``` 默認版 ```bash hadoop fs -ls / # 根據配置查找默認根路徑 ``` 文件系統 ```bash hadoop fs -ls file:///root ``` > hdfs dfs -ls / # 老版本命令 args選項 **<u>-put</u>**:從本地上傳到hdfs系統。[-f] 覆蓋已有文件 ```bash hadoop fs -put -f localfile1 localfile2 localfile3 /user/hadoop/gosuncn ``` **<u>-get</u>**:從hdfs系統下載到本地。 ```bash hadoop fs -get -f hdfs://hadoop1:9000/gosuncn/file.txt localfile.txt ``` **<u>-setrep</u>**:改變文件副本系數。-R 遞歸,-w 副本數。 ```bash hadoop fs -setrep -w 4 -R /user/hadoop/gosuncn ``` -getmerge:合并。 > -ls、-mkdir、-appendToFile、-cat、-tail、-chgrp、-chmod、-chown、-copyFromLocal、-copyToLocal、-cp、-df、-du
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