JPG to WEBp conversion in Linux Ubuntu. A good practice for lighter images on websites.

jpg_to_webp.sh

#First install the webp converter by this
sudo apt-get install webp

#go inside the directory where all images are there
#make sure all images are in RGB color mode, otherwise you will get error for CMYK images.
#Convert all images to RGB by this command (you should install ImageMagik to do that)
for f in *.jpg; do convert -colorspace RGB "$f" "${f}"; done

#finally convert all images to Webp format
for f in *.jpg; do cwebp -q 90 "$f" -o "${f%%.*}".webp; done