title: Files did not copy using shutil.copytree (Linux OS)
body: <p>I wrote a script to transfer my files from internal hard drive to an external disk. 
  Code:</p>
  
  <pre><code>  import shutil
    from shutil import copyfile
    import glob
    import os
    from IPython import embed
    import subprocess
  
    path = os.getcwd()
    #pathHD = glob.glob(path+"/HD*")
    pathHD = glob.glob(path+"/RD*")
  
    destPath = "/mnt/backUp2/data/"
  
    for name in pathHD:
           #embed()
           baseName =os.path.basename(name)
           #Checking if directory exists in dest path
           if not (os.path.exists(destPath+baseName)):
                   print "Moving ",name,"---&gt;",destPath
                   shutil.copytree(name,destPath+baseName) #recursive copying to destination dir
  
           else:
                   print name," *****************Already exists**********"
  </code></pre>
  
  <p>I copying was superslow, so I did a ctrl-c to stop the process. But now, in my external hard disk, I am not able to find the moved files at all. I do not understand how ctrl-C should stop it because each <code>shutil.copytree</code> command is independent of the other files.</p>
  
  <pre><code>My output:
  Moving  /home/dhiraj/RD 4992Aug12 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4835Aug11 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4329Aug02 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4631Aug05 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4049Jul31 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4432Aug03 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4011Jul31 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4826Aug11 ---&gt; /mnt/backUp2/data/
  Moving  /home/raj/RD 4732Aug05 ---&gt; /mnt/backUp2/data/
  ^C^C^C^C^Z^Z^Z^Z^Z^Z^X^X^X^X^Z^Z^Z^Z^Z^Z^C^C^C
  [1]+  Stopped                 python copy_files.py
  </code></pre>
  
  <p>My filesystem is NTFS and I unmounted(lazy) using <code>sudo umount -l /dev/sdc2</code>. Whatever files that my output said, that it had moved, was not present in the destination file. Example, the first line of my output RD 4992Aug12 was notthere in my destination folder. I tested my script for a bunch of other files, which were also smaller in comparison and they worked fine. They were copies to my destination folder.</p>
  
  <ol>
  <li><p>Please let me know if you can find why my copied files are missing</p></li>
  <li><p>Should I use subprocess.Popen(cp) command instead?</p></li>
  </ol>
  
  <p>NOTE: </p>
  
  <ol>
  <li>I need to move files in TB, where each file is probably 0.5 GB.</li>
  <li>My read speed of the disk 134Kb/s which is very slow.</li>
  </ol>