OS X 10.10 Copy / Paste Source file count does not match destination file count I have folderA and want to make a copy of all the contents within into FolderB.  I select all the contents inside of FolderA then selected copy and went to FolderB and pasted it.  When it is done, there is a difference of ~500 files between the two folders when I check the folder sizes.  

When I move the files, everything comes across.

I cannot figure out why there is such a big difference?  Does anybody know what might be happening?
Is it possible, that there are hidden files in the source folder?

You could use this shortcut in Finder to switch between showing/hiding hidden files.


  CMD + SHIFT + .


If you want to make sure to copy the whole content anyway, open Terminal.app and enter


  cp -pr /path/to/source /path/to/destination


After typing "cp -pr " in Terminal, you can drag&amp;drop the folder names vom Finder window to Terminal window.