wallpaper-extractor.sh

#!/bin/bash
# A script to extract the wallpapers from the Caledonia wallpaper collection

for directory in *; do
	cd "$directory"
	
	if [ -d 'content' ]; then
		cd 'content'
	elif [ -d 'contents' ]; then
		cd 'contents'
	fi
	
	cd 'images'

	NUM_IMGS=$(ls | wc -l)
	if [ $NUM_IMGS == '1' ]; then
		file_ext=$(ls | cut -d \. -f2)
		cp * "/home/gp/Pictures/Caledonia/$directory.$file_ext"
	else
		highestRes=0
		for image in *; do
			imgRes=$(echo $image | cut -d x -f1)
			if [ $imgRes -ge $highestRes ]; then
				highestRes=$imgRes
			fi
		done

		file_ext=$(ls | grep -m 1 $highestRes | cut -d \. -f2)
		cp $(ls | grep -m 1 $highestRes) "/home/gp/Pictures/Caledonia/$directory.$file_ext"
	fi

	cd ../../..	
done