Answers:
您可以使用查看HTML标头-I
。如果重定向是元刷新,则应该以这种方式作为标头。
lamp@oort ~ $ curl -I http://google.com<br>
HTTP/1.1 301 Moved Permanently<br>
Location: http://www.google.com/<br>
Content-Type: text/html; charset=UTF-8<br>
Date: Thu, 21 Nov 2013 14:59:13 GMT<br>
Expires: Sat, 21 Dec 2013 14:59:13 GMT<br>
Cache-Control: public, max-age=2592000<br>
Server: gws<br>
Content-Length: 219<br>
X-XSS-Protection: 1; mode=block<br>
X-Frame-Options: SAMEORIGIN<br>
Alternate-Protocol: 80:quic
如果重定向是通过PHP进行的,则可以通过比较浏览器的运行位置与实际运行的位置进行比较来检测到这一点。使用Python,JS等进行编码的方法有很多。一个项目可能很有趣给您的是phantomjs,这是一个可编写脚本的无头浏览器。
尝试这个 :
for link in link1 link2 link3; do
curl -Is "$link" | awk '/Location/{print $2}'
done
或使用 网猫 :
for link in link1 link2 link3; do
printf '%s\n%s\n\n%s\n' 'HEAD / HTTP/1.1' "Host: $link" 'Connexion:close' |
netcat $link 80 | awk '/Location/{print $2}'
done
来自man curl
:
-w, --write-out <format>
Defines what to display on stdout after a completed and
successful operation.
<...>
redirect_url When an HTTP request was made without -L to
follow redirects, this variable will show the
actual URL a redirect would take you to.
(Added in 7.18.2)
因此,可能curl -w "%{redirect_url}" link1
会给您第一个重定向URL。
也许这样的事情适合您:
URL="http://google.com"
while [ -n "${URL}" ]
do
echo $URL
URL=$(curl -sw "\n\n%{redirect_url}" "${URL}" | tail -n 1)
done