This is the simplest command. It takes a single parameter which is the name of the input file to be matched. If no filename is provided, it will expect a file named "mergedfile.txt" Putting this command in the script starts the matching, and thus this command generally follows any of the preprocessing commands. During the matching process, a number of files are created in the folder representing various optional views as well as any trades that weren't matched. The ultimate goal is the file named "shortlongterm.csv". This file has the matched trades in the Schedule D format.