#!/bin/bash sudo apt-get install build-essential libpng-dev -y cd /usr/local/src rm -rf optipng* OPTIPNGLATEST=$(wget http://optipng.sourceforge.net/ -O - | grep tar.gz | awk -F "[\"]" '{print $4}') wget $OPTIPNGLATEST -O optipng.tar.gz tar -xf optipng.tar.gz cd optipng-* ./configure --prefix=/usr make -j "$(nproc)" sudo make install