Console.WriteLine(files.Count + " files after prefix filtering");
            files.Sort((a,b) =>
                a.Substring(a.LastIndexOf('_')).CompareTo(
                b.Substring(b.LastIndexOf('_')))
            );
            Console.WriteLine("Oldest: " + files[0]);
            Console.WriteLine("Newest: " + files[files.Count-1]);
            return 0;


-0-203720-ed-nitor <~/inc> ~/dev/cs/ircavail/ircavail/bin/Debug/ircavail.exe rizon_ ed
22922 files before prefix filtering
13519 files after prefix filtering
Oldest: ./log/2013-06/rizon_#drawfriends_20130609.log
Newest: ./log/rizon_#nipponsei_20140515.log