dduper VS jdupes

In some cases deduplication happens at the file system layer transparently without you even realizing it. E.g. there are tools like https://github.com/lakshmipathi/dduper

I agree that image editing workflows are a different use case more suited to perceptual hashes than cryptographic hashes.

ddupper uses a patched btrfs command to read file hases from the raw disk. It requires root access and is kind of a hack.

There are various tools to use for COW deduplication, such as bees, duperemove, rmlint, jdupes, and dduper

Hmm, could we use something like dduper to achieve this, if they don't have it included?

I recommend the use of jdupes, a fork of the well-known fdupes, to find duplicate files.

200 lines of Nim [1] seems to run about 9X faster than the 8000 lines of C in fdupes on a little test dir I have. If you need C, I think jdupes [2] is faster as @TacticalCoder points out a couple of times here. In my testing, `dups` is usually faster than `jdupes`, though.

[1] https://github.com/c-blake/bu/blob/main/dups.nim

[2] https://github.com/jbruchon/jdupes

There's always the well-respected tool, Czkawka. Or, of the CLI is your thing, jdupes is a good option.

My research into this many years ago turned out that jdupes was the right / best solution I could find for my usecase.

https://github.com/jbruchon/jdupes

Though that works fine from a script perspective I'd like some more interactive way of sorting directories etc. Identifying is just the first step, jdupes helps with linking the files (both soft and hard links comes with caveats though!) but that is mostly to save space, not to help in reorganisation.

I can work it out by looking at https://github.com/jbruchon/jdupes.

I have looked at a few alternatives and think jdupes is the one for me. Then I found out it was not multi-threaded so will give it a go but the developer of jdupes recomended fclones (https://github.com/jbruchon/jdupes/issues/186) if you were dealing with large file systems and wanted multi-threading. But as I am using a HD it may not be necessary.

jdupes is a fork of the old standby fdupes, but it has a Win32 release as well as supporting POSIX.

jdupes is a tuned fork of the well-known fdupes, and has Win32 releases.