#!/bin/sh

for f in *.png
do
	ff=`basename $f .png`
	fff=`echo $ff | sed -e 's/-small//'`
	if [ "$ff" != "$fff" ]
	then
		continue
	fi
	if [ ! -f "$ff-small.png" -o "$f" -nt "$ff-small.png" ]
	then
		echo convert -resize 55% $f $ff-small.png
	fi
done