我正在尝试从html文件中提取特定标题下的所有文本。我想使用xmllint实用程序。我正在Linux环境中工作。
这里是html文件：https://kernelnewbies.org/Linux_3.6#Block
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<h1 id="Block">5. Block</h1>
<span class="anchor" id="line-118"></span><ul><li><p class="line862">Add a new operation code (BLKPG_RESIZE_PARTITION) to the BLKPG ioctl that allows altering the size of an existing partition, even if it is currently in use <a class="http" href="http://git.kernel.org/linus/c83f6bf98dc1f1a194118b3830706cebbebda8c4">(commit)</a> <span class="anchor" id="line-119"></span></li><li><p class="line862">Device mapper RAID: Add support for MD RAID10 <a class="http" href="http://git.kernel.org/linus/63f33b8dda88923487004b20fba825486d009e7b">(commit)</a> <span class="anchor" id="line-120"></span></li><li><p class="line862">Device mapper thin: add read-only and fail I/O modes <a class="http" href="http://git.kernel.org/linus/e49e582965b3694f07a106adc83ddb44aa4f0890">(commit)</a> <span class="anchor" id="line-121"></span></li><li><p class="line862">Device mapper: remove persistent data debug space map checker <a class="http" href="http://git.kernel.org/linus/3caf6d73d4dc163b2d135e0b52b052a2b63e5216">(commit)</a> <span class="anchor" id="line-122"></span></li><li><p class="line862">md/raid1: prevent merging too large request <a class="http" href="http://git.kernel.org/linus/12cee5a8a29e7263e39953f1d941f723c617ca5f">(commit)</a> <span class="anchor" id="line-123"></span><span class="anchor" id="line-124"></span></li></ul><p class="line867">
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</html>我想要以下输出：
5. Block
Add a new operation code (BLKPG_RESIZE_PARTITION) to the BLKPG ioctl that allows altering the size of an existing partition, even if it is currently in use (commit)
Device mapper RAID: Add support for MD RAID10 (commit)
Device mapper thin: add read-only and fail I/O modes (commit)
Device mapper: remove persistent data debug space map checker (commit)
md/raid1: prevent merging too large request (commit)
[基本上，我想创建一个脚本，用于从内核新手网站中提取不同内核版本中对块层的更改的描述。
正如您对问题的评论中提到的那样，您可以使用xidel而不是xmllint来获得大部分信息。所以试试这个：
xidel https://kernelnewbies.org/Linux_3.6 --extract '//h1[@id="Block"]//following-sibling::ul[1]//p/text()'