删除/替换bash中的html标签 [英] Remove/replace html tags in bash

问题描述

我有一个包含以下行的文件:

I have a file with lines that contain:

<li><b> Some Text:</b> More Text </li>

我想删除html标记并将</b>标记替换为破折号，使它变成这样:

I want to remove the html tags and replace the </b> tag with a dash so it becomes like this:

Some Text:- More Text

我正在尝试使用sed，但是找不到正确的正则表达式组合.

I'm trying to use sed however I can't find the proper regex combination.

推荐答案

如果您确实要剥离所有HTML标记，但同时 only 用</b>标记>，您可以使用管道将两个简单的sed命令链接在一起:

If you strictly want to strip all HTML tags, but at the same time only replace the </b> tag with a -, you can chain two simple sed commands with a pipe:

cat your_file | sed 's|</b>|-|g' | sed 's|<[^>]*>||g' > stripped_file

这会将所有文件的内容传递给第一个sed命令，该命令将处理将</b>替换为-.然后，其输出将通过管道传递到sed，该sed将用空字符串替换所有HTML标记.最终输出将保存到新文件stripped_file.

This will pass all the file's contents to the first sed command that will handle replacing the </b> to a -. Then, the output of that will be piped to a sed that will replace all HTML tags with empty strings. The final output will be saved into the new file stripped_file.

使用与@Steve的其他答案类似的方法，您还可以使用sed的-e选项将表达式链接成单个(非管道命令)；通过添加-i，您还可以读入并替换原始文件的内容，而无需cat或新文件:

Using a similar method as the other answer from @Steve, you could also use sed's -e option 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:

sed -i -e 's|</b>|-|g' -e 's|<[^>]*>||g' your_file

这将像上面的链接命令一样进行替换，但是这次它将直接替换输入文件中的内容.要保存为新文件，请删除-i并将> stripped_file添加到末尾(或您选择的任何文件名).

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 -i and add > stripped_file to the end (or whatever file-name you choose).

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