How you guys handle duplicate images?
Fragment of a discussion from Project:Support desk
Can you run fdupes from the command line? In Ubuntu (or other unix based OS) type the following.
man fdupes
You may be able to install it using the following command.
sudo apt-get install fdupes
Note that I strongly recommend that you do not use this for deletion.
Allen4names (talk)
Special:FileDuplicateSearch may also be useful. (I'm surprised there isn't a special page for listing all files with (local) duplicates. All the info is already in the database).