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?
Interactive backup tool
backup;diff