Distributed files
Monday, March 01, 2010
11:28 AM
Copy input files to hadoop's distributed file system.
hadoop fs -put local_input input
Run an instance of an algorithm: 
hadoop jar [file] arguments...
Copy the output files from the distributed filesystem to the local filesytem and examine them:
hadoop fs -get output local_output 
cat local_output/*
Typically, 
Input is any number of text files. 
Output is one file part-00000 containing the result. 