bash URL 替换为 sed
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URL replace with sed
提问by w4h
i want to change all links in html file using sed like this
我想像这样使用 sed 更改 html 文件中的所有链接
s/ <a[^>]* href="[^"]*\// <a href="\http:\/\/www.someurl.com\//g
but it's not working.
但它不起作用。
My links:
我的链接：
<a href="http://www.mylink.com/help/rss.php" target="_top" title="RSS">RSS</a></div>
my script change only mylink.com/help/rss.php to someurl.com/help/rss.php
我的脚本仅将 mylink.com/help/rss.php 更改为 someurl.com/help/rss.php
I need to change to only someurl.com
我只需要更改为 someurl.com
回答by Paused until further notice.
Take out the space after the first slash, change all the sedslashes to another character such as |for readability and remove all the escaping from the URL slashes.
去掉第一个斜杠后面的空格，把所有的sed斜杠都改成另一个字符，例如|为了可读性，并删除所有从 URL 斜杠中转义的字符。
sed 's|<a[^>]* href="[^"]*/|<a href="http://www.someurl.com/|g'
回答by Chris Morgan
You've ended it with \/, meaning it will go to the last slash. Remove the trailing \/and it will work:
您已经以 结束\/，这意味着它将转到最后一个斜杠。删除尾随\/，它将起作用：
$ echo ' <a href="http://www.mylink.com/help/rss.php" target="_top" title="RSS">RSS</a></div>' \
> | sed 's/ <a[^>]* href="[^"]*/ <a href="\http:\/\/www.someurl.com\//g'
<a href="http://www.someurl.com/" target="_top" title="RSS">RSS</a></div>
Or, edited in line with Dennis's wise suggestion about the separator character (still with removing the /at the end of the search pattern, more obvious now):
或者，根据丹尼斯关于分隔符的明智建议进行编辑（仍然删除/搜索模式末尾的 ，现在更明显）：
$ echo '<a href="http://www.mylink.com/help/rss.php" target="_top" title="RSS">RSS</a></div>' \
> | sed 's|<a[^>]* href="[^"]*|<a href="http://www.someurl.com/|g'
<a href="http://www.someurl.com/" target="_top" title="RSS">RSS</a></div>
