1)-moveFromLocal:从本地剪切粘贴到HDFS
hadoop fs -moveFromLocal ./shuguo.txt /sanguo
2)-copyFromLocal:从本地文件系统中拷贝文件到HDFS路径去
hadoop fs -copyFromLocal weiguo.txt /sanguo
3)-put:等同于copyFromLocal,生产环境更习惯用put
hadoop fs -put ./wuguo.txt /sanguo
4)-appendToFile:追加一个文件到已经存在的文件末尾
hadoop fs -appendToFile liubei.txt /sanguo/shuguo.txt
1.-copyToLocal:从HDFS拷贝到本地
hadoop fs -copyToLocal /sanguo/shuguo.txt ./
2.-get:等同于copyToLocal,生产环境更习惯用get
hadoop fs -get /sanguo/shuguo.txt ./shuguo2.txt
1)-ls: 显示目录信息
hadoop fs -ls /sanguo
2)-cat:显示文件内容
hadoop fs -cat /sanguo/shuguo.txt
3)-chgrp、-chmod、-chown:Linux文件系统中的用法一样,修改文件所属权限
hadoop fs -chmod 666 /sanguo/shuguo.txt
hadoop fs -chown atguigu:atguigu /sanguo/shuguo.txt
4)-mkdir:创建路径
hadoop fs -mkdir /jinguo
5)-cp:从HDFS的一个路径拷贝到HDFS的另一个路径
hadoop fs -cp /sanguo/shuguo.txt /jinguo
6)-mv:在HDFS目录中移动文件
hadoop fs -mv /sanguo/wuguo.txt /jinguo
7)-tail:显示一个文件的末尾1kb的数据
hadoop fs -tail /jinguo/shuguo.txt
8)-rm:删除文件或文件夹
hadoop fs -rm /sanguo/shuguo.txt
9)-rm -r:递归删除目录及目录里面内容
hadoop fs -rm -r /sanguo
10)-du统计文件夹的大小信息
hadoop fs -du -s -h /jinguo
27 81 /jinguo
# 说明:27表示文件大小;81表示27*3个副本;/jinguo表示查看的目录
11)-setrep:设置HDFS中文件的副本数量
hadoop fs -setrep 10 /jinguo/shuguo.txt