ENVIRONMENT =========== I'm using scalac 2.9.2 running on Mac OS X Version 10.6.8. You'll need a compatible version of scala in order to build and run the program. BUILDING ======== Type ./build.sh in /Sortable TO RUN ====== Type ./go.sh path_to_product_file path_to_listing_file path_to_output_file The directory that will contain the result file must exist. Eg. ./go.sh data/products.txt data/listings.txt data/results.txt