As a way to find duplicate files on your system, jdupes is pretty good. However jdupes lacks (at least) the following things:

• The ability to sort by file size (which is odd, given the task),
• No ability to set a lower limit on the file sizes to match, (this results in piles of tiny matched files in the unsorted list),
• No ability to see file sizes in human-readable form.

figure — jdupes.sh bash script

• line  3: The first if statement just displays usage information if no parms are supplied.
• line 11: We are Not passing jdupes the -S parameter to show file size. We will get the size using a call to du later in the script (line 15) so that the size can be shown on the same line as the filename in the results. This allows us to sort the results by size. The stock jdupes command places the size above the filename line, so it can't be sorted.
• line 12: The IFS= portion is to retain leading and trailing spaces in each line that is pumped through the "|" filter from jdupes. The -r after read treats backslash "\" … as might be found in Windows paths … as a normal character.
• lines 15-17: The size of the file is retrieved with du. set is then used to break the variable sz into separate $1, $2 ... $n variables, with $1 holding the actual size.
• Line 18 checks to see if the size is over a limit, so that we can avoid hundreds (thousands?) of matches on small files. The current limit is 100MB (100000). Set this however low that you wish to.
• Line 19: Finally, we echo out the size followed by the filename; to be sorted by size on line 24.

#!/bin/bash

if [[ -z "$@" ]]; then
echo "Nothing to do!"
echo "Usage: jdupes.sh [device label or folder 1] [2] ... [n]"
echo "Enclose names including blanks within double quotes."
echo "e.g. $ jdupes.sh /media/user/MX500-2TB . "/m/f/Seagate Backup""
echo "       will process 2 of User's drives and the current folder (".")."
exit 1
fi
jdupes -r "$@" | {
while IFS= read -r file; do
if [[ ! -z "$file" ]]; then
if [[  ! "$file" == "bytes each" ]]; then
sz=$(du "$file")
set -- $sz
if [[ $1 -gt 100000 ]]; then
echo $(du "$file")

fi
fi
fi

done
} | sort -n > /home/user/myjdups_sorted.txt
echo

echo "RESULTS"

tail -n 250 /home/user/myjdups_sorted.txt

NTFS	(Windows formatted drive)	 701384  General Class - Session 1 (2023-11-02).mp4

EXT		(Linux formatted drive)		 701388  General Class 1 (2023-11-02).mp4