问题
When i tried curl -r 0-100 to get a part of document i always got a full html page.Is there a simple way to know if host support range headers or don't , so i could use curl range option.
回答1:
A server signals its support for ranges in the response headers. Look for "Accept-Ranges: bytes" in the response when you send a HEAD or a GET to the site.
来源：https://stackoverflow.com/questions/12332858/how-to-know-if-host-support-range-headers