hadoop dfs -mkdir /home
hadoop dfs -put hello /
hadoop dfs -put hellodir/ /
hadoop dfs -ls /
hadoop dfs -touchz /361way
hadoop dfs -rm /361way
hadoop dfs -rmr /home
hadoop dfs -mv /hello1 /hello2
hadoop dfs -cat /hello
hadoop dfs -getmerge /hellodir wa
hadoop dfs -du /
hadoop dfs -copyToLocal /home localdir
hadoop dfsadmin -report