Copy a flat directory of iPhone pictures and videos into a YYYYMM folder structure, based on the date the picture/video was taken.

iPhoneMediaSorter.cs

class Program
{
    private const string SourceDirectory = @"D:\iPhoneMedia";
    private const string DestDirectory = @"D:\iPhoneMediaSorted";

    static void Main(string[] args)
    {
        var sourceDir = new DirectoryInfo(SourceDirectory);

        // Group by YYYYMM
        var yearMonth = sourceDir
            .GetFiles()
            .OrderBy(fi => fi.LastWriteTime)
            .GroupBy(fi => (fi.LastWriteTime.Year * 100) + fi.LastWriteTime.Month)
            .ToList();

        foreach (var ym in yearMonth)
        {
            Console.WriteLine("{0}: {1}", ym.Key, ym.Count());

            var destFolder = Path.Combine(DestDirectory, ym.Key.ToString());
            if (!Directory.Exists(destFolder))
            {
                Directory.CreateDirectory(destFolder);
            }

            foreach (var fi in ym)
            {
                var destFile = Path.Combine(destFolder, fi.Name);
                Console.WriteLine("Copying {0} to {1}", fi.Name, destFile);
                fi.CopyTo(destFile, overwrite: true);
            }
        }

        Console.WriteLine("Press ENTER to quit...");
        Console.ReadLine();
    }
}