This is example of SHOW FILE for a user installed file (UIF).
SHOW FILE mapper;
Result:
*** Text of DDL statement returned. ---------------------------------------------------------------------------------- CALL SYSUIF.INSTALL_FILE('mapper','mapper.py','cz!mapper.py!/tmp/mapper.py') *** Text of DDL statement returned. ---------------------------------------------------------------------------------- #!/usr/bin/python import sys # input comes from STDIN (standard input) for line in sys.stdin: # remove leading and trailing whitespace line = line.strip() # split the line into words words = line.split() # increase counters for word in words: # write the results to STDOUT (standard output); # what we output here will be the input for the # Reduce step, i.e. the input for reducer.py # # tab-delimited; the trivial word count is 1 print '%s\t%s' % (word, 1)