Image optimization bash script

imgopt.sh

##
# @author Carlos Cámara <[email protected]> based on the script by freakie guy <[email protected]>
# @package Batch Optimize Image for web performance similar to Compressor.io
# @requirement jpegoptim, optipng
##


#
# Folder path
#
FOLDER="$HOME/Desktop"
WORKFOLDER="$FOLDER/optimized"
FILE="run.jpeg"

WIDTH="900"


#
# check jpeg cmd if not install
#
jpegoptimize() {
    for f in *.jp*g
    do
	FILENAME="${f%%.*}"
	EXTENSION="${f##*.}"
	convert "$f" -resize $WIDTH "${FILENAME}_${WIDTH}.${EXTENSION}"
	cp "${FILENAME}_${WIDTH}.${EXTENSION}" "${FILENAME}_${WIDTH}_control.${EXTENSION}"
	jpegoptim --max=80 --strip-all --preserve --totals --all-progressive "${FILENAME}_${WIDTH}.${EXTENSION}"
    done
}



#
# check jpeg cmd if not install
#
pngoptimize() {
	for f in *.png
    	do
		FILENAME="${f%%.*}"
		EXTENSION="${f##*.}"
		convert "$f" -resize $WIDTH "${FILENAME}_${WIDTH}.${EXTENSION}"
        	optipng -o7 -preserve "${FILENAME}_${WIDTH}.${EXTENSION}"
	done
}


if [ ! -d "$WORKFOLDER" ]
then
	mkdir $WORKFOLDER
fi

cd $WORKFOLDER

cp "$FOLDER/$FILE" $WORKFOLDER

echo "jpeg Optimization start ...."
jpegoptimize
echo -e "jpeg Done.\n"
echo "png Optimization start ...."
pngoptimize
echo "png Done."