添加/使用bash脚本删除XML标记 [英] Add/remove xml tags using a bash script

问题描述

我有我想用一个bash脚本配置XML文件。例如，如果我有这样的XML：

I have an xml file that I want to configure using a bash script. For example if I had this xml:

<a>

  <b>
    <bb>
        <yyy>
            Bla 
        </yyy>
    </bb>
  </b>

  <c>
    <cc>
      Something
    </cc>
  </c>

  <d>
    bla
  </d>
</a>

的（信息保密删除）的

我想编写一个bash脚本，将删除部分＆LT; B＆GT; （或注释），但可保留完整的XML的其余部分。我是pretty新的整个脚本的事情。我想知道如果任何人都可以给我一个提示，我应该看看成什么样。

I would like to write a bash script that will remove section <b> (or comment it) but keep the rest of the xml intact. I am pretty new the the whole scripting thing. I was wondering if anyone could give me a hint as to what I should look into.

我在想，SED可用于的除了的sed是一个行编辑器。我认为这将是很容易删除＆LT; B＆GT; 标签但是我不能确定，如果用sed将能够去除所有的文字 的＆LT; b＆GT; 标记。

I was thinking that sed could be used except sed is a line editor. I think it would be easy to remove the <b> tags however I am unsure if sed would be able to remove all the text between the <b> tags.

我还需要编写一个脚本来重新添加删除的部分。

I will also need to write a script to add back the deleted section.

推荐答案

这不会是很难在SED做，因为sed的也适用于范围。

This would not be difficult to do in sed, as sed also works on ranges.

试试这个（假设XML是在一个名为foo.xml文件）：

Try this (assuming xml is in a file named foo.xml):

sed -i '/<b>/,/<\/b>/d' foo.xml

-i会写换入原始文件（使用-i.bak保留的备份副本原件）

-i will write the change into the original file (use -i.bak to keep a backup copy of the original)

这sed命令将在所有由范围指定的行执行操作D（删除）

This sed command will perform an action d (delete) on all of the lines specified by the range

# all of the lines between a line that matches <b>
# and the next line that matches <\/b>, inclusive
/<b>/,/<\/b>/

所以，用简单的英语，该命令将删除所有的线，并包括以＆lt行; B＆GT;并以＆lt行; / B个

So, in plain English, this command will delete all of the lines between and including the line with <b> and the line with </b>

如果你宁愿行注释掉，请尝试以下之一：

If you'd rather comment out the lines, try one of these:

# block comment
sed -i 's/<b>/<!-- <b>/; s/<\/b>/<\/b> -->/' foo.xml

# comment out every line in the range
sed -i '/<b>/,/<\/b>/s/.*/<!-- & -->/' foo.xml

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