check flags

#!/bin/bash

#Cut the flags to the variable flags
flags=$(dig google.se | grep -o -P '(?<=flags: ).*(?=;)')
if echo $flags | grep -q ra; then
        echo "It responds to recursive queries"
else
        echo "It doesn't respond to recursive queries"
fi

if echo $flags | grep -q aa; then
        echo "It responds authoritatively"
else
        echo "It doesn't responds authoritatively"
fi