resize.sh

#!/bin/bash

for i in $(ls -d *x* 2>/dev/null)
do
	if [[ $i =~ [0-9]+x[0-9]+ ]]
	then
		echo $i
		ls *.jpg *.JPG 2>/dev/null | while read f
		do
			if ! [ -f $i/$f ]
			then
				echo $f
				convert $f -resize "$i^" -gravity center -crop $i+0+0 +repage -quality 80 $i/$f
				cwebp $i/$f -q 80 -o $i/$(basename $f .jpg).webp 2>/dev/null
			fi
		done
	fi
done