Question

I have a file structure like so

a/file1
a/file2
a/file3
a/...
b/file1
b/file2
b/file3
b/...
...

where within each dir, some files have the same file size, and I would like to delete those.

I guess if the problem could be solved for one dir e.g. dir a, then I could wrap a for-loop around it?

for f in *; do
???
done

But how do I find files with same size?

Answer 1

Solution working with “file names with spaces” (based on Kent (+1) and awiebe (+1) posts):

for FILE in *; do stat -c"%s/%n" "$FILE"; done | awk -F/ '{if ($1 in a)print $2; else a[$1]=1}' | xargs echo rm

to make it remove duplicates, remove echo from xargs.