#!/bin/sh Img=ic_launcher.png cd ./res for Dpi in m h xh xxh xxxh do mkdir -p ./drawable-${Dpi}dpi done convert ./drawable/$Img -resize 48x48 ./drawable-mdpi/$Img convert ./drawable/$Img -resize 72x72 ./drawable-hdpi/$Img convert ./drawable/$Img -resize 96x96 ./drawable-xhdpi/$Img convert ./drawable/$Img -resize 144x144 ./drawable-xxhdpi/$Img convert ./drawable/$Img -resize 192x192 ./drawable-xxxhdpi/$Img for Dpi in m h xh xxh xxxh do pngquant -v --strip --speed=1 --force -o ./drawable-${Dpi}dpi/$Img ./drawable-${Dpi}dpi/$Img done cd ..