删除/替换 bash 中的 html 标签
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Remove/replace html tags in bash
提问by thisiscrazy4
I have a file with lines that contain:
我有一个包含以下行的文件：
<li><b> Some Text:</b> More Text </li>
I want to remove the html tags and replace the </b>tag with a dash so it becomes like this:
我想删除 html 标签并用</b>破折号替换标签，使其变成这样：
Some Text:- More Text
I'm trying to use sed however I can't find the proper regex combination.
我正在尝试使用 sed 但是我找不到合适的正则表达式组合。
回答by newfurniturey
If you strictly want to strip all HTML tags, but at the same time onlyreplace the </b>tag with a -, you can chain two simple sedcommands with a pipe:
如果您严格想要去除所有 HTML 标签，但同时只</b>用 a替换标签-，您可以sed用管道链接两个简单的命令：
cat your_file | sed 's|</b>|-|g' | sed 's|<[^>]*>||g' > stripped_file
This will pass all the file's contents to the first sedcommand that will handle replacing the </b>to a -. Then, the output of that will be piped to a sedthat will replace all HTML tags with empty strings. The final output will be saved into the new file stripped_file.
这会将文件的所有内容传递给第一个sed命令，该命令将处理替换</b>为-. 然后，它的输出将通过管道传送到一个sed将用空字符串替换所有 HTML 标记的。最终输出将保存到新文件中stripped_file。
Using a similar method as the other answer from @Steve, you could also use sed's -eoption to chain expressions into a single (non-piped command); by adding -i, you can also read-in and replace the contents of your original file without the need for cat, or a new file:
使用与@Steve 的其他答案类似的方法，您还可以使用sed's-e选项将表达式链接到单个（非管道命令）中；通过添加-i，您还可以读入和替换原始文件的内容，而无需cat，或新文件：
sed -i -e 's|</b>|-|g' -e 's|<[^>]*>||g' your_file
This will do the replacement just as the chained-command above, however this time it will directly replace the contents in the input file. To save to a new file instead, remove the -iand add > stripped_fileto the end (or whatever file-name you choose).
这将像上面的链式命令一样进行替换，但是这次它将直接替换输入文件中的内容。要保存到新文件，请删除-i并添加> stripped_file到末尾（或您选择的任何文件名）。
回答by Steve
One way using GNU sed:
一种使用方式GNU sed：
sed -e 's/<\/b>/-/g' -e 's/<[^>]*>//g' file.txt
Example:
例子：
echo "<li><b> Some Text:</b> More Text </li>" | sed -e 's/<\/b>/-/g' -e 's/<[^>]*>//g'
Result:
结果：
Some Text:- More Text
