Compress jpgs with MozJpeg recursively.

mozjpeg.sh

#!/bin/bash

#convert pngs to jpg
#find . -type d -exec bash -c 'cd "{}" && mogrify -format jpg *.png' \;
#find . -type f -name '*.png' -delete

#convert gifs to jpg
#find . -type d -exec bash -c 'cd "{}" && mogrify -format jpg *.gif' \;
#find . -type f -name '*.gif' -delete

#rename jpeg to jpg
#find . -type f -iname "*.jpeg" -exec bash -c 'mv "$0" "${0%.jpeg}.jpg"' {} \;
#find . -type f -iname "*.jpeg" -exec bash -c 'mv "$0" "${0%.JPEG}.jpg"' {} \;


echo "optimizing jpgs"
shopt -s globstar
for file in **/*.jpg
do
  echo "Processing $file"
  mozjpeg "$file" > "temp.jpg"
  mozjpegtran "temp.jpg" > "$file"
done
rm "temp.jpg"