Read Snoopy Comics Online

#!/bin/bash
url="https://www.gocomics.com/peanuts"
read -p "Enter Start Date: " d
d=$(date +%Y/%m/%d -d "$d")

read -p "Enter End Date: " end
end=$(date +%Y/%m/%d -d "$end")

while [ "$d" != "$end" ];
do
  echo $d
  img="$(wget -qO- "$url/$d"|grep "og:image"|head -n1|cut -d\" -f4)"
  wget -c "$img"
  d=$(date +%Y/%m/%d -d "$d + 1 day")

done