Curl在下面的位置抓取远程文件名 [英] Curl to grab remote filename after following location

问题描述

使用curl下载文件时，如何查看链接位置并将其用于输出文件名（不提前知道远程文件名）？

When downloading a file using curl, how would I follow a link location and use that for the output filename (without knowing the remote filename in advance)?

例如，如果点击下面的链接，你会下载一个文件名为pythoncomplete.vim。但是使用curl的-O和-L选项，文件名只是原来的远程名称，一个笨拙的download_script.php？src_id = 10872。

For example, if one clicks on the link below, you would download a filenamed "pythoncomplete.vim." However using curl's -O and -L options, the filename is simply the original remote-name, a clumsy "download_script.php?src_id=10872."

curl -O -L http://www.vim.org/scripts/download_script.php?src_id=10872

要下载具有正确文件名的文件，您必须事先知道文件的名称：

In order to download the file with the correct filename you would have to know the name of the file in advance:

curl -o pythoncomplete.vim -L http://www.vim.org/scripts/download_script.php?src_id=10872

如果你可以在不知道名字的情况下下载文件，这将是非常好的，如果没有，是否有另一种方法通过命令行快速下拉重定向文件？ p>

It would be excellent if you could download the file without knowing the name in advance, and if not, is there another way to quickly pull down a redirected file via command line?

推荐答案

如果您有最近版本的 curl （7.21.2或更高版本），请参阅 @ jmanning2k的回答。

If you have a recent version of curl (7.21.2 or later), see @jmanning2k's answer.

我有一个旧版本 curl （如同Snow Leopard附带的7.19.7），请执行两个请求：a HEAD 文件名从响应头，然后一个 GET ：

I you have an older version of curl (like 7.19.7 which came with Snow Leopard), do two requests: a HEAD to get the file name from response header, then a GET:

url="http://www.vim.org/scripts/download_script.php?src_id=10872"
filename=$(curl -sI  $url | grep -o -E 'filename=.*$' | sed -e 's/filename=//')
curl -o $filename -L $url

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