mkdir
Creates directories at given path URIs.
Returns 0 on success and -1 on error.
The usage is as follows:
$ hadoop fs -put [-f] [-p] [-l] [-d] [-t <thread count>] [ - | <localsrc1> .. ]. <dst>| -p | Similar to the Unix  | 
Example:
$ hadoop fs -mkdir /user/hadoop/dir1 /user/hadoop/dir2
$ hadoop fs -mkdir hdfs://nn1.example.com/user/hadoop/dir hdfs://nn2.example.com/user/hadoop/dir