find -type f -name "*.jpg" -exec jpegoptim --strip-all {} \;
find -name '*.png' -print0 | xargs -0 optipng -o7
find . -iname '*.jpg' -exec jpegoptim –max=80 –all-progressive –totals –strip-all {} \;
find . -iname '*.JPG' -exec jpegoptim –max=80 –all-progressive –totals –strip-all {} \;
find . -iname '*.jpeg' -exec jpegoptim –max=80 –all-progressive –totals –strip-all {} \;
find . -iname '*.JPEG' -exec jpegoptim –max=80 –all-progressive –totals –strip-all {} \;