Read a text file and sort in C#, for http://devblog.avdi.org/2013/10/16/sorting-lines-in-5-languages/

Sorter.cs

using System.IO;
using System.Linq;

namespace SortingExample
{
    public class Sorter
    {
        static void Main(string[] args)
        {
            var lines = File.ReadAllLines(args[0]).OrderBy(a => a);
            File.WriteAllLines(args[1], lines);
        }
    }
}