whatsapp-backup() {
    TIMESTAMP=`python3 -c "from datetime import datetime; print(datetime.now().strftime('%Y-%m-%d.%H-%M-%S.%f'))"`
    DESTDIR=~/Downloads/WhatsApp-export-$TIMESTAMP
    mkdir -p $DESTDIR
    find ~/Library/Group\ Containers/group.net.whatsapp.WhatsApp.shared/ -type f -iname '*.*' -exec cp "{}" $DESTDIR \;
}