# from: https://gist.github.com/w33zy/7b948d10175f5417af60ce0128e1e1bd # Install jpegoptim and optipng apt update && apt install jpegoptim optipng -y # JPG optimization cd /path/to/your/image/folder find . -iname "*.jp*" -print0 | xargs -0 jpegoptim --strip-all -m76 # PNG optimization cd /path/to/your/image/folder find . -iname '*.png' -print0 | xargs -0 optipng -o7 -preserve