Installing cwebp
sudo apt update
sudo apt install webp
Fedora cwebp
sudo dnf install libwebp-tools
Open Suse
sudo zypper install libwebp-tools
Arch u
sudo pacman -S base-devel
git clone https://aur.archlinux.org/libwebp.git
cd libwebp
makepkg -si
Convert JPG and PNG to WEBP
for file in *.jpg *.png; do cwebp "$file" -o "${file%.*}.webp" done