consider a file with the following format:  a header row with colon-separated field names, and data rows with colon-separated values.  for
example:

      AGE:EYES:HAIR
      32:BLUE:BLONDE
      54:BROWN:BROWN

Now from the command line if I pass AGE as parameter then it should give me 32 & 54...if I pass HAIR then it should give me BLONDE & BROWN....