Copy file instead of moving to prevent Invalid cross-device link error

bin/mv-to-docs

@@ -6,6 +6,7 @@ Move a document to the correct documents folder
 import filecmp
 import os
 import re
+import shutil
 import sys
 
 from datetime import date
@@ -64,7 +65,8 @@ if __name__ == "__main__":
 
     if not os.path.isfile(new_file_path):
         print "Moving file '%s' to '%s'" % (file_name, new_file_path)
-        os.rename(file_name, new_file_path)
+        shutil.copyfile(file_name, new_file_path)
+        os.unlink(file_name)
     else:
         if filecmp.cmp(new_file_path, file_name):
             print "Two files already exist and are same: '%s' and '%s'" % \