MacOS – “Operation can’t be completed because item with name already exists” error with Paragon NTFS

I just ran across this myself, and the built in cp command actually handles it.

I discovered a bunch of old CF cards that I wanted to harvest the pictures from. My processing scripts will look at the file mtime to put it in the correct place so I needed it preserved.

From the man page:

 -p    Cause cp to preserve the following attributes of each source file in the copy: modification time,
       access time, file flags, file mode, user ID, and group ID, as allowed by permissions.  Access
       Control Lists (ACLs) and Extended Attributes (EAs), including resource forks, will also be pre-
       served.

       If the user ID and group ID cannot be preserved, no error message is displayed and the exit value
       is not altered.

       If the source file has its set-user-ID bit on and the user ID cannot be preserved, the set-user-
       ID bit is not preserved in the copy's permissions.  If the source file has its set-group-ID bit
       on and the group ID cannot be preserved, the set-group-ID bit is not preserved in the copy's per-
       missions.  If the source file has both its set-user-ID and set-group-ID bits on, and either the
       user ID or group ID cannot be preserved, neither the set-user-ID nor set-group-ID bits are pre-
       served in the copy's permissions.

So, using zsh I was able to run (NO NAME being my cards volume name):

cp -rvp /Volumes/NO\ NAME/DCIM/**/*.{JPG,jpg} ~/Desktop/tmp/pics

I believe that the special /**/* construct is specific to ZSH; however you could do something like

find /Volumes/WHATEVER -type d -print0 | xargs cp -vp {}/*.JPG /my/out/path

This is not possible using stock OS X since even on a normal drive (and not getting into any core storage considerations), diskutil does not support the UFSD_NTFS and NTFS formats:

Mac:~ bmike$ diskutil listFilesystems
Formattable file systems

These file system personalities can be used for erasing and partitioning.
When specifying a personality as a parameter to a verb, case is not considered.
Certain common aliases (also case-insensitive) are listed below as well.

-------------------------------------------------------------------------------
PERSONALITY                     USER VISIBLE NAME                               
-------------------------------------------------------------------------------
ExFAT                           ExFAT                                           
Free Space                      Free Space                                      
  (or) free
MS-DOS                          MS-DOS (FAT)                                    
MS-DOS FAT12                    MS-DOS (FAT12)                                  
MS-DOS FAT16                    MS-DOS (FAT16)                                  
MS-DOS FAT32                    MS-DOS (FAT32)                                  
  (or) fat32
HFS+                            Mac OS Extended                                 
Case-sensitive HFS+             Mac OS Extended (Case-sensitive)                
  (or) hfsx
Case-sensitive Journaled HFS+   Mac OS Extended (Case-sensitive, Journaled)     
  (or) jhfsx
Journaled HFS+                  Mac OS Extended (Journaled)                     
  (or) jhfs+

You would need to use a tool other than diskutil to perform the formatting, but the Apple tools will respect and leave alone these volumes or make space for them by leaving free space or a FAT/ExFAT partition that you could then erase and leave NTFS data on the drive. Additionally, the Paragon pre-sales FAQ for 10.0.2 doesn't mention either Fustion Drive or Core Storage, so I would assume they don't support this. Have you asked them if core storage is supported?