digthis.sh

#!/usr/bin/env bash

HYPERLINK="$1"

canyoudigit () {
    RETVAL=1;
    while [ $RETVAL -ne 0 ]
    do
        clear
        VAL=$(dig "$HYPERLINK")
        echo "$VAL"
        echo "$VAL" | grep ^"$(echo $HYPERLINK | cut -d'.' -f2)"
        RETVAL=$?
        sleep 5
    done
}

main () {
    canyoudigit
}
main