Useful command optimize image

install

#Use two package jpegotpim & optipng to optimize image

aptitude install jpegoptim optipng

find . -type f -regex ".*\.jpe?g" -exec jpegoptim --strip-all {} \;
find . -type f -name "*.png" -exec optipng {} \;

optimze.sh

#Bash file for cron

#Create current path
DIR=$PWD"/public/"

find $DIR -type f -regex ".*\.jpe?g" -ctime -1 -exec jpegoptim --max=90 --strip-all {} \;
find $DIR -type f -name "*.png" -ctime -1 -exec optipng -o5 {} \;