How to write a bash script to sort files in a directory?

Question

linux

Help me write a script that can remove duplicate files.
There is a set of images, you need to delete files with the same size. But you do not need to delete all such images, but only the following in the queue (in alphabetical order):

1.png    # 23,5 Kb
2.png    # 24,6 Kb
4.png    # 24,6 Kb > remove
8.png    # 24,6 Kb > remove
16.png   # 23,5 Kb

UPD: Got a response on unix.stackexchange.com

Answer 1

For this very purpose it is better to use remove-duplicates from the recoverjpeg package.