bash中判断curl返回状态码

代码如下：

response=$(
    curl https://greenhtml.com/asdf/rer.html \
        --write-out %{http_code} \
        --silent \
        --output /dev/null \
)

echo $response 
if test "$response" -ge 200 && test "$response" -le 299 
then 
echo 'check point success'
else 
echo 'check point fail'
exit 1
fi