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LINQ and Extension method (simple)

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simple LINQ and a Left extension method

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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. using System.IO;
  6.  
  7. namespace CentreFolderDeduper
  8. {
  9.     class Program
  10.     {
  11.         static void Main(string[] args)
  12.         {
  13.             String[] centreFolders = Directory.GetDirectories(args[0]);
  14.             List<String> centres = new List<String>();
  15.  
  16.             foreach(var centreFolder in centreFolders)
  17.             {
  18.                 if (centreFolder.IndexOf('-') != -1)
  19.                 {
  20.                     centres.Add(centreFolder.Left(centreFolder.IndexOf('-')));
  21.                 }
  22.             }
  23.  
  24.             var duplicateFolders = from f in centres
  25.                                    group f by f.ToString() into g
  26.                                    where g.Count() > 1
  27.                                    select new { CentreFolderName = g.Key, CentreFolderNameCount = g.Count() };
  28.  
  29.             Console.WriteLine(duplicateFolders.Count());
  30.             ObjectDumper.Write(duplicateFolders);
  31.             Console.ReadKey();
  32.         }
  33.     }
  34. }

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