Minify png and jpeg

gistfile1.sh

for file in `find . -iname "*.jpg" -or -iname "*.png" -or -iname "*.jpeg"`;do
  ext=${file##*.}
  if [ -n "$ext" ]; then
    if [ "$ext" = "jpg" ]; then
      echo "optimizing ${file} as jpeg file with jpegtran"
      jpegtran -copy none -optimize -perfect -outfile temp_abracadabra_filename.jpg $file 
      mv -f temp_abracadabra_filename.jpg $file;
    fi
    if [ "$ext" = "jpeg" ]; then
      echo "optimizing ${file} as jpeg file with jpegtran"
      jpegtran -copy none -optimize -perfect -outfile temp_abracadabra_filename.jpeg $file
      mv -f temp_abracadabra_filename.jpeg $file;
    fi
    if [ "$ext" = "png" ]; then
      echo "optimizing ${file} as png file with pngcrush"
      pngcrush -rem alla -reduce -brute "$file" temp_abracadabra_filename.png;
      mv -f temp_abracadabra_filename.png $file;
    fi
  fi
done;