BrachchTest/FileCopy/Program.cs

using System;
using System.IO;

namespace DirectoryCopyTool
{
    class Program
    {
        static string filetype = "";
        static int Main(string[] args)
        {
            if (args.Length != 3)
            {
                Console.WriteLine("Verwendung:");
                Console.WriteLine("DirectoryCopyTool.exe <Source-Verzeichnis> <Dest-Verzeichnis> <FileType>");
                return 1;
            }

            string sourceDirectory = Path.GetFullPath(args[0]);
            string destinationDirectory = Path.GetFullPath(args[1]);
            filetype = args[2];

            if (!Directory.Exists(sourceDirectory))
            {
                Console.WriteLine("Fehler: Das Source-Verzeichnis existiert nicht:");
                Console.WriteLine(sourceDirectory);
                return 2;
            }

            try
            {
                CopyDirectory(sourceDirectory, destinationDirectory);

                Console.WriteLine("Kopiervorgang erfolgreich abgeschlossen.");
                return 0;
            }
            catch (Exception ex)
            {
                Console.WriteLine("Fehler beim Kopieren:");
                Console.WriteLine(ex.Message);
                return 3;
            }
        }

        static void CopyDirectory(string sourceDirectory, string destinationDirectory)
        {
            // Zielverzeichnis anlegen, falls es noch nicht existiert
            if (!Directory.Exists(destinationDirectory))
            {
                Directory.CreateDirectory(destinationDirectory);
            }

            // Dateien im aktuellen Verzeichnis kopieren
            foreach (string sourceFile in Directory.GetFiles(sourceDirectory))
            {
                string fileName = Path.GetFileName(sourceFile);
                string destinationFile = Path.Combine(destinationDirectory, fileName);
                string ext = Path.GetExtension(fileName);
                if (ext.ToUpper() == "."+filetype.ToUpper())
                {
                    File.Copy(sourceFile, destinationFile, true);
                    Console.WriteLine("Kopiert: {0}", sourceFile);
                }

                // true = vorhandene Datei überschreiben
            }

            // Unterverzeichnisse rekursiv kopieren
            foreach (string sourceSubDirectory in Directory.GetDirectories(sourceDirectory))
            {
                string directoryName = Path.GetFileName(sourceSubDirectory);
                string destinationSubDirectory =
                    Path.Combine(destinationDirectory, directoryName);

                CopyDirectory(sourceSubDirectory, destinationSubDirectory);
            }
        }
    }
}