36.16 Duplicate Photos
20220122 Duplicates of photos readily occur as we copy photos around on our storage and attempt to manage large collections of photos with different file naming schemes.
$ fdupes . ./20180323_122434_02.jpg ./20180323_122434_01.jpg ./20180323_122434_00.jpg ./20030102_092312_03.jpg ./20031012_092312_00.jpg ./20200531_151245_01.jpg ./20200531_151245_00.jpg
--recurse) sub-directories are included. A summary of
duplicates is obtained with
$ fdupes --summarize . 13567 duplicate files (in 6407 sets), occupying 16996.0 megabytes
Deleting duplicates with fdupes will retain the
first listed within each group. Using
name might be useful for filenames that differ by numerals, so
keeping the lowest numbered file. Explore with order to get what best
works for you.
$ fdupes --order='name' --reverse . ./20180323_122434_00.jpg ./20180323_122434_01.jpg ./20180323_122434_02.jpg ./20031012_092312_00.jpg ./20030102_092312_03.jpg ./20200531_151245_00.jpg ./20200531_151245_01.jpg
The following command will delete duplicates, keeping the first listed in each group:
$ fdupes --delete --noprompt --order='name' --reverse . [+] ./2020/20200926_063024.jpg [-] ./camera/20200926_063024.jpg [-] ./todo/20200926_063024.jpg [+] ./2020/20201114_061818.jpg [-] ./camera/20201114_061818.jpg [-] ./todo/20201114_061818.jpg [+] ./2020/20201003_051104.jpg [-] ./camera/20201003_051104.jpg [-] ./todo/20201003_051104.jpg [+] ./2020/20201114_062446.jpg [-] ./camera/20201114_062446.jpg [-] ./todo/20201114_062446.jpg ...
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