I had to walk alone on the sand, 
and I had to walk forever

    - Davey

import java.io.*;
import java.util.*;

/**
 * Quick class to copy files from one directory to another, giving the new
 * copies a random name along the way.
 */
public class Cop {
  public static void main(String []args) throws IOException {
      File in = new File(args[0]);
      File out = new File(args[1]);

      if (!out.isDirectory()) {
          System.err.println("destination must be a directory");
          System.exit(1);
      }

      Random rand = new Random(System.currentTimeMillis());
      File []files = in.listFiles();
      for (int i = 0; i < files.length; i++) {
          File f = files[i];

          if (f.isDirectory()) {
            continue;
          }

          String []parts = f.getName().split("\\.");
          String suffix = parts[parts.length - 1];
          String name = rand.nextLong() + "." + suffix;
          File nf = new File(out, name);
          while (nf.exists()) {
            name = rand.nextLong() + "p." + f.getName();
            nf = new File(out, name);
          }


          InputStream ins = new FileInputStream(f);
          OutputStream outs = new FileOutputStream(nf);
   
          // Transfer bytes from in to out
          byte[] buf = new byte[1024];
          int len;
          while ((len = ins.read(buf)) > 0) {
              outs.write(buf, 0, len);
          }

          System.out.println(f);
      }
  }
}

david.petersheim@gmail.com

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