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.
An efficient process is to use the
--delete --recurse options of
fdupes to begin an interactive session which lists
all duplicated files and provides options for their resolution.
fdupes --delete --recurse .
With no options fdupes lists groups of duplicated files in the specified directory:
$ fdupes . ./20180323_122434_02.jpg ./20180323_122434_01.jpg ./20180323_122434_00.jpg ./20030102_092312_03.jpg ./20031012_092312_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
By default fdupes can be asked to delete
duplicates, retaining 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
The following command will delete duplicates
--delete without asking
--noprompt, keeping the first listed in each group using an ordering
we have specified:
$ 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 ...
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