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^{Wikipedia had an article (http://en.wikipedia.org/wiki/List_of_duplicate_file_finders), with a list of available open source software for this task, but it's now been deleted}.

I will add that the GUI version of fslint is very interesting, allowing to use mask to select which files to delete. Very useful to clean duplicated photos.

On Linux you can use:

- FSLint: http://www.pixelbeat.org/fslint/

- FDupes: https://en.wikipedia.org/wiki/Fdupes

- DupeGuru: https://www.hardcoded.net/dupeguru/

- Czkawka: https://qarmin.github.io/czkawka/

FDupes and DupeGuru work on many systems (windows, mac and linux) I 've not checked for FSLint

^{Wikipedia once had an article with a list of available open source software for this task, but it's now been deleted.}

I will add that the GUI version of fslint is very interesting, allowing to use mask to select which files to delete - very useful to clean duplicated photos.

On Linux you can use:

- FSLint: http://www.pixelbeat.org/fslint/

- FDupes: https://en.wikipedia.org/wiki/Fdupes

- DupeGuru: https://www.hardcoded.net/dupeguru/

- Czkawka: https://qarmin.github.io/czkawka/

FDupes and DupeGuru work on many systems (Windows, Mac and Linux). I've not checked FSLint or Czkawka.

^{Wikipedia had an article (http://en.wikipedia.org/wiki/List_of_duplicate_file_finders), with a list of available open source software for this task, but it's now been deleted}.

I will add that the GUI version of fslint is very interesting, allowing to use mask to select which files to delete. Very useful to clean duplicated photos.

On Linux you can use:

- FSLint: http://www.pixelbeat.org/fslint/

- FDupes: https://en.wikipedia.org/wiki/Fdupes

- DupeGuru: https://www.hardcoded.net/dupeguru/

The 2 last work on many systems (windows, mac and linux) I 've not checked for FSLint

^{Wikipedia had an article (http://en.wikipedia.org/wiki/List_of_duplicate_file_finders), with a list of available open source software for this task, but it's now been deleted}.

I will add that the GUI version of fslint is very interesting, allowing to use mask to select which files to delete. Very useful to clean duplicated photos.

On Linux you can use:

- FSLint: http://www.pixelbeat.org/fslint/

- FDupes: https://en.wikipedia.org/wiki/Fdupes

- DupeGuru: https://www.hardcoded.net/dupeguru/ 

- Czkawka: https://qarmin.github.io/czkawka/

FDupes and DupeGuru work on many systems (windows, mac and linux) I 've not checked for FSLint

Have a look on this wikipedia link displaying available open source software for this task.

http://en.wikipedia.org/wiki/List_of_duplicate_file_finders

I will add that the GUI version of fslint is very interesting, allowing to use mask to select which files to delete. Very useful to clean duplicated photos.

On Linux you can use:

- FSLint: http://www.pixelbeat.org/fslint/

- FDupes: https://en.wikipedia.org/wiki/Fdupes

- DupeGuru: https://www.hardcoded.net/dupeguru/

The 2 last work on many systems (windows, mac and linux) I 've not checked for FSLint

^{Wikipedia had an article (http://en.wikipedia.org/wiki/List_of_duplicate_file_finders), with a list of available open source software for this task, but it's now been deleted}.

I will add that the GUI version of fslint is very interesting, allowing to use mask to select which files to delete. Very useful to clean duplicated photos.

On Linux you can use:

- FSLint: http://www.pixelbeat.org/fslint/

- FDupes: https://en.wikipedia.org/wiki/Fdupes

- DupeGuru: https://www.hardcoded.net/dupeguru/

The 2 last work on many systems (windows, mac and linux) I 've not checked for FSLint