I needed to remove about 60 subdirectories named "_thumbs" from my pictures directory.  Of course manually doing this through Explorer wasn't something I was up for.  I tried to do it through the command line, but RD doesn't support multiple directories as inputs.  I wanted to do this:

dir /AD /B /S *_thumbs* | rd /s

but that didn't work, so I had to write my own RD command that is capable of piping input through it - which was still faster than doing it through Explorer.

dir /AD /B /S *_thumbs* | consoleapplication1

using System;
using System.IO;
using log4net;

namespace ConsoleApplication1
{
    class Program
    {
        private static readonly ILog Logger = LogManager.GetLogger(typeof(Program));

        static void Main(string[] args)
        {
            string input;
            do
            {
                input = Console.ReadLine();

                if (input != null)
                    DeleteDir(input);

            } while (input != null);
        }

        private static void DeleteDir(string input)
        {
            if (Directory.Exists(input))
            {
                Logger.InfoFormat("Deleting directory {0}", input);
                Directory.Delete(input, true);
            }
            else
                Logger.WarnFormat("Directory {0} does not exist", input);
        }
    }
}