Check files between drives with different directory structure

[alobo]

Consider the situation in which I copy files from one disk (eg an SD card) to a given directory, eg. /home/pepa/dir1, but, later, subdirectories were created in dir1, and many files were moved to those subdirectories.
After a while, I want to clean the SD, but I would like to make sure first that all files in the SD actually exist on dir1 or in any of its subdirectories. Can I use FreeFileSync to check that all files in the SD actually exist in dir1 or in any of its subdirectories?

[Plerry]

If the directory structure in your dir1 is (completely) different from that on your SD card, then FreeFileSync seems to not be the tool for your job.

[alobo]

I am a FreeFileSync user, and I understand that this is not really a sync problem, but a common problem for FreeFileSync users, which might not be difficult to solve through options in the Configuration or, perhaps, a dedicated tool. Or perhaps you can suggest an existing tool. All I have been able to find is
https://stackoverflow.com/questions/75704712/find-files-that-have-not-been-copied-from-one-directory-to-another-file-tree
but all these solutions are very slow.

[TomBoy321]

I agree that FFS was many of the underlying abilities to make this happen, but as dedicated utilities already exist that will fulfil this use case I think it's unlikely the author will add any such functionality, especially considering the additional confusion and compilation it would add.

alobo, I suggest you use any one of the many great duplicate file removing utilities available. Being an FFS user, you should easily be able to understand how such a utility with a directory given keep priority would solve your issue. But I can explain if you want.

The two that recommend offhand are https://github.com/qarmin/czkawka & https://www.duplicatecleaner.com/

[alobo]

Thanks. I have contacted the author of czkawka, because what I would need is to search dor not-duplicated, rather than duplicated.

[TomBoy321]

Last time I used one of those utilities, I was able to give a directory (e.g. an SD card) a path that the program would sort in such a way that I could select all duplicate files on it (this was by alphanumeric sorting), therefor deleting/cleaning all files I previously sorted on my PC/backups, and the only files left on the SD cards are ones I need to deal with. Is that not what you want, alobo?

Edit: See https://alternativeto.net/software/duplicate-cleaner/ for crowd-sourced alternatives

[alobo]

The files in the SD should be duplicated somewhere in the disk. What I want to verify is that all files in the SD exist in the disk. I can eliminate those duplicated files from the SD, but see https://github.com/qarmin/czkawka/issues/1265

[alobo]

Solved with dude https://github.com/PJDude/dude