using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace ScanFolders

{

    class Program

    {

        static string from = @"Z:\Images_1";

        static string to = @"Z:\Images";

​

        static List<string> Files = new List<string>();

​

        static void Main(string[] args)

        {

​

            TreeScan(from);

​

            TextWriter tw = new StreamWriter(@"c:\temp\Files.txt");

​

            foreach (String s in Files)

                tw.WriteLine(s);

​

            tw.Close();

        }

​

        static DateTime theDate = new DateTime(2018, 10, 18, 7, 0, 0);

​

        private static void TreeScan( string sDir )

        {

            foreach (string f in Directory.GetFiles( sDir ))

            {

                try

                {

                    string fromFile = f;

                    string toFile = fromFile.Replace(@from, to);

​

                    //var modDate = File.GetLastWriteTime(fromFile);

​

                    //if (modDate > theDate)

                    //{

                    //    CopyFile(from, to);

                    //}

                    //else

                    {

                        if (!File.Exists(toFile))

                        {

                            var modDate = File.GetLastWriteTime(fromFile);

​

                            CopyFile(modDate, fromFile, toFile);

                        }

                    }

                }

                catch (Exception e)

                {

                    Console.WriteLine(e);

                }

            }

​

            foreach (string d in Directory.GetDirectories( sDir ))

            {

                TreeScan( d ); 

            }

        }

​

        private static void CopyFile(DateTime dateMod, string from, string to)

        {

            try

            {

                string line = "{dateMod:yyyy/MM/dd HH:mm:ss} {from}";

​

                Files.Add(line);

​

                Console.WriteLine(line);

​

                File.Copy(from, to);

            }

            catch (Exception e)

            {

                Console.WriteLine(e);

            }

        }

    }

}

​