删除html/xml的最简单方法<；标签>；从单线输出

我试图清理grep的输出，它看起来像：

<words>Http://www.path.com/words</words>

Http://www.path.com/words

我试过用

sed 's/<.*>//' 

sed's//'

…删除标签，但这只会破坏整条线路。我不知道为什么会发生这种情况，因为每一个“”在进入内容之前

最简单的方法是什么

---

谢谢

为您的sed表达式尝试以下操作：

sed 's/<.*>\(.*\)<\/.*>/\1/'

这给了我们：

parens like this

那到底是怎么回事？让我们把这个表达式分解一下看看

表达式细分：

<.*>   - Match the first tag
\(.*\) - Match and save the text between the tags   
<\/.*> - Match the end tag making sure to escape the / character  
\1     - Output the result of the first saved match 
       -   (the text that is matched between \( and \))

sed s/ - This is the opening tag to a sed expression.
.*     - Match any character to start (as well as nothing).
(      - Match a literal left parenthesis character.
\(.*\) - Match any character and save as a back-reference. In this case it will match anything between the first open and last close parenthesis in the expression.
)      - Match a literal right parenthesis character.
.*     - Same as above.
\1     - Match the first saved back-reference. In the case of our sample this is filled in with `parens`
\(.*\) - Same as above.
\1     - Same as above.
/      - End of the match expression. Signals transition to the output expression.
\1 \2  - Print our two back-references.
/      - End of output expression.

---

正如我们所看到的，从括号（

（

和

）

）之间获取的back引用被替换回匹配表达式，以便能够匹配字符串

parens

Grep默认为贪婪，这意味着它将获取第一个

和最后一个

之间的所有内容。好的，这很有效。不过，我真的不明白它在干什么。我看到它在逃避一些字符，但有人能解释一下发生了什么（特别是帕伦斯和数字1）？非常感谢@user115360我添加了一个表达式分解。这回答了你的问题吗？我喜欢增加解释。你已经回答了很多。谢谢使用此部分，
\（.*）
，您可以作出注释，说明它保存了文本。当你储蓄时，这在实践中意味着什么？我在想这可能是一个分组。但后来我意识到你两个都逃走了。那它到底在干什么？
sed s/ - This is the opening tag to a sed expression.
.*     - Match any character to start (as well as nothing).
(      - Match a literal left parenthesis character.
\(.*\) - Match any character and save as a back-reference. In this case it will match anything between the first open and last close parenthesis in the expression.
)      - Match a literal right parenthesis character.
.*     - Same as above.
\1     - Match the first saved back-reference. In the case of our sample this is filled in with `parens`
\(.*\) - Same as above.
\1     - Same as above.
/      - End of the match expression. Signals transition to the output expression.
\1 \2  - Print our two back-references.
/      - End of output expression.