HDFS的Shell操作

hadoop fs 具体命令
或者
hdfs dfs 具体命令

（dfs是fs的实现类）

 hadoop fs -help rm

hadoop fs -ls /

hadoop fs -ls -R  /home

hadoop fs -mkdir -p /test/cs

touch test.txt
hadoop fs -moveFromLocal ./test.txt /test/cs

touch test1.txt
vim test1.txt
输入
san gu mao lu

hadoop fs -appendToFile test1.txt /test/cs/test.txt

hadoop fs -cat /test/cs/test.txt

hadoop fs -chmod 666 /test/cs/test.txt
hadoop fs -chown yzh:yzh /test/cs/test.txt

hadoop fs -copyFromLocal test1.txt /

hadoop fs -copyToLocal /test/cs/text.txt  ./

hadoop fs -cp /test/ce/test.txt  /

hadoop fs -mv /test/cs/test.txt /

hadoop fs -get /test/cs/test.txt  ./

hadoop fs -getmerge /test/user/* ./test.txt

hadoop fs -put ./test.txt /test/cs

hadoop fs -tail /test/cs/test.txt

hadoop fs -rm /test/cs/test.txt

hadoop fs -rmdir /test

hadoop fs -du -s -h  /test

hadoop fs -setrep 10 /test/cs/test.txt