I am looking for a backup (or diff) tool where I can select interactively which file I want to copy towards my external hard-disk.

Let me explain with further details: I have two computers and an external hard disk. All the disks have (somewhere) the same directory structure and, at some point, the same content.

I can modify files/directory structures in any of the two computers. Modify means: - create/delete (on purpose or not)/move new files and dir, - improve or alter some files.

So I'm looking for a tool working like diff, which shows the differences between two directory trees and ask me what to do (ie, in which direction to copy/remove).

meld appeared to do it, but its not really efficient with my configuration (~30GB over data), do you have any suggestion?

  • 2
    Have a look at unison.
    – Marco
    Commented Mar 9, 2013 at 14:45
  • What about rsync?
    – jordanm
    Commented Mar 9, 2013 at 16:19
  • Isn't it a shopping question? Commented Mar 9, 2013 at 18:00
  • @jordanm rsync is not interactive, as far as I could see, it's only one way
    – Kevin
    Commented Mar 9, 2013 at 18:13
  • @DeerHunter what's a shopping question ??
    – Kevin
    Commented Mar 9, 2013 at 18:14

1 Answer 1


You may try out Synkron. It's a cross-platform application. However, it's more of a Synchronization tool.

You may "Analyse" the files that have changed, the files which doesn't exist in the other directory and all the differences between the two/multiple sets of folders. You may also filter to only show the files which are affected.


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