blocks|key|3676291|text|正如您所评论的，如果您想提取"<a+class="timetable+work"+href="test.com/";+and+"?tag=meta376">Test</a>"，您可以使用以下正则表达式：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3676292|<a+class="timetable.*?<\/a>|code-block|syntax|javascript|3676293|3676294|如果您想获取内容，只需在regex周围使用捕获组：|3676295|(<a+class="timetable.*?<\/a>)|3676296|匹配结果为：|3676297|MATCH+1
1.++[9-80]++`<a+class="timetable+work"+href="test.com/";+and+"?tag=meta376">Test</a>`|3676298|entityMap^0|E|21|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|10|8|@]|D|@]|E|$]]|$1|N|3|O|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|P|3|Q|5|6|7|12|8|@]|D|@]|E|$]]|$1|R|3|S|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|T|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|U|$]]

As you commented, if you want to extract <code>"&lt;a class="timetable work" href="test.com/"; and "?tag=meta376"&gt;Test&lt;/a&gt;"</code> you can use the following regex:

<pre><code>&lt;a class="timetable.*?&lt;\/a&gt;
</code></pre>

<a href="http://regex101.com/r/qI5yH9/1" rel="nofollow">Working demo</a>

If you want to grab the content just surround the regex with capturing groups:

<pre><code>(&lt;a class="timetable.*?&lt;\/a&gt;)
</code></pre>

The match is:

<pre><code>MATCH 1
1. [9-80] `&lt;a class="timetable work" href="test.com/"; and "?tag=meta376"&gt;Test&lt;/a&gt;`
</code></pre>

blocks|key|1282095|text|我想这就是你想要的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1282096|sed+'s_%5E.*<a+[%5E<>]*+href="https*://[%5E/]*/$[%5E"?]*$.*$_\1_'|code-block|syntax|javascript|1282097|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I think this is what you want:

<pre><code>sed 's_^.*&lt;a [^&lt;&gt;]* href="https*://[^/]*/$[^"?]*$.*$_\1_'
</code></pre>

blocks|key|1275739|text|使用您告诉我们使用的分隔符，给出您所要求的内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1275740|$+sed+-n+'s%7C.*<a+class="timetable+work"+href="http://www\.test\.com/$.*$?tag=meta376">Test</a>%7C\1%7Cp'+file
pagename|code-block|syntax|javascript|1275741|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Giving you exactly what you asked for using exactly the delimiters you told us to use:

<pre><code>$ sed -n 's|.*&lt;a class="timetable work" href="http://www\.test\.com/$.*$?tag=meta376"&gt;Test&lt;/a&gt;|\1|p' file
pagename
</code></pre>

blocks|key|1360096|text|我知道使用正则表达式来处理这个问题可能很诱人，但这里有一个替代方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1360097|您正在尝试解析一些HTML，因此请使用HTML解析器。下面是一个用Perl编写的示例：|1360098|use+strict;
use+warnings;
use+feature+qw(say);

use+HTML::TokeParser::Simple;
use+URI::URL;

my+$filename+=+'file.html';+
my+$parser+=+HTML::TokeParser::Simple->new($filename);

while+(my+$anchor+=+$parser->get_tag('a'))+{
++++next+unless+defined(my+$class+=+$anchor->get_attr('class'));
++++next+unless+$class+=~+/\btimetable\b/+and+$class+=~+/\bwork\b/;++++
++++my+$url+=+url+$anchor->get_attr('href');++++
++++say+substr($url->path,+1);
}|code-block|syntax|javascript|1360099|使用HTML::TokeParser::Simple解析HTML。循环遍历<a>标记，跳过没有定义正确类的任何标记。对于需要这样做的，使用URI::URL解析url并提取"path“组件(在本例中，应该是"/pagename")。因为您不想要前导斜杠，所以我使用substr删除了第一个字符。|offset|length|style|CODE|1360100|输出：|1360101|pagename|1360102|我知道它比单一的正则表达式要长得多，但它也是一个lot，更健壮，即使将来的格式稍有变化，它也可以继续工作。HTML解析器的存在是有原因的:)|BOLD|1360103|entityMap|0|LINK|mutability|MUTABLE|url|http://search.cpan.org/~gaas/HTML-Parser-3.71/lib/HTML/TokeParser.pm|1|http://search.cpan.org/~rse/lcwa-1.0.0/lib/lwp/lib/URI/URL.pm^0|0|0|0|2|O|11|3|1X|8|3N|6|2|O|0|1X|8|1|0|0|0|O|C|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|16|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|17|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|18|8|@$K|19|L|1A|M|N]|$K|1B|L|1C|M|N]|$K|1D|L|1E|M|N]|$K|1F|L|1G|M|N]]|9|@$K|1H|L|1I|1|1J]|$K|1K|L|1L|1|1M]]|A|$]]|$1|O|3|P|5|6|7|1N|8|@]|9|@]|A|$]]|$1|Q|3|R|5|F|7|1O|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|1P|8|@$K|1Q|L|1R|M|U]]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12]]|13|$5|Y|Z|10|A|$11|14]]]]

I know it may be tempting to handle this using a regular expression but here's an alternative.

You are trying to parse some HTML, so use an HTML parser. Here's an example in Perl:

<pre><code>use strict;
use warnings;
use feature qw(say);

use HTML::TokeParser::Simple;
use URI::URL;

my $filename = 'file.html'; 
my $parser = HTML::TokeParser::Simple-&gt;new($filename);

while (my $anchor = $parser-&gt;get_tag('a')) {
 next unless defined(my $class = $anchor-&gt;get_attr('class'));
 next unless $class =~ /\btimetable\b/ and $class =~ /\bwork\b/; 
 my $url = url $anchor-&gt;get_attr('href'); 
 say substr($url-&gt;path, 1);
}
</code></pre>

Parse the HTML using <a href="http://search.cpan.org/~gaas/HTML-Parser-3.71/lib/HTML/TokeParser.pm" rel="nofollow"><code>HTML::TokeParser::Simple</code></a>. loop through the <code>&lt;a&gt;</code> tags, skipping any that don't have the correct classes defined. For the ones that do, use <a href="http://search.cpan.org/~rse/lcwa-1.0.0/lib/lwp/lib/URI/URL.pm" rel="nofollow"><code>URI::URL</code></a> to parse the url and extract the "path" component (which in your case, would be "/pagename"). As you didn't want the leading slash, I used <code>substr</code> to remove the first character.

Output:

<pre><code>pagename
</code></pre>

I know it's much longer than a single regex but it's also a lot more robust and will continue to work even when the format of your HTML changes slightly in the future. HTML parsers exist for a reason :)

blocks|key|1360168|text|为此，我将使用awk：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1360169|awk+-F"[/?]"+'/timetable+work/+{print+$4}'file
pagename|code-block|syntax|javascript|1360170|它搜索包含timetable+work行，然后使用\或?作为分隔符打印第四个字段。|1360171|entityMap^0|7|3|0|0|5|E|P|1|R|1|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|N|$]]

I would use <code>awk</code> for this:

<pre><code>awk -F"[/?]" '/timetable work/ {print $4}'file
pagename
</code></pre>

It search for a line containing <code>timetable work</code>, then print fourth field using <code>\</code> or <code>?</code> as separator.

I am trying to extract "pagename" from the following:

<pre><code>&lt;a class="timetable work" href="http://www.test.com/pagename?tag=meta376"&gt;Test&lt;/a&gt;
</code></pre>

I tried to get it to work using "sed" but it only says invalid command code.

What line of code would you guys suggest to get the pagename? By the way: This is not a single line but there is more content on the same line - but that should not make a difference as it should just matter what is between the limiters, right?

Thanks in advance for helping me out!

sed/grep - get text between two strings (html)

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试从以下内容中提取"pagename“：<a class="timetable work" href="http://www.test.com/pagename?tag=meta376">Test</a>我尝试使用"sed“让它工作，但它只显示无效的命令代码。你们建议使用哪一行代码来获取页面名称？顺便说一句:这...

问sed/grep -获取两个字符串之间的文本(html)
EN

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问sed/grep -获取两个字符串之间的文本(html)EN