从命令行合并多个 XML 文件

Merge multiple XML files from command line

提问by TutanRamon

I have several xml files. They all have the same structure, but were splitted due to file size. So, let's say I have A.xml, B.xml, C.xmland D.xmland want to combine/merge them to combined.xml, using a command line tool.

我有几个 xml 文件。它们都具有相同的结构，但由于文件大小而被拆分。所以，让我们说我有A.xml，B.xml，C.xml并D.xml和要合并/它们合并到combined.xml，使用命令行工具。

A.xml

xml文件

<products>
    <product id="1234"></product>
    ...
</products>

B.xml

xml文件

<products>
  <product id="5678"></product>
  ...
</products>

etc.

等等。

采纳答案by berk

xml_grep

xml_grep

http://search.cpan.org/dist/XML-Twig/tools/xml_grep/xml_grep

http://search.cpan.org/dist/XML-Twig/tools/xml_grep/xml_grep

xml_grep--pretty_print indented --wrap products --descr '' --cond "product" *.xml > combined.xml

xml_grep--pretty_print 缩进 --wrap products --descr '' --cond "product" *.xml > combine.xml

• --wrap : encloses/wraps the the xml result with the given tag. (here: products)
• --cond : the xml subtree to grep (here: product)

• --wrap : 用给定的标签包含/包装 xml 结果。（这里products）
• --cond：将XML子树到grep（这里product）

回答by eswald

High-tech answer:

高科技答案：

Save this Python script as xmlcombine.py:

将此 Python 脚本保存为 xmlcombine.py：

#!/usr/bin/env python
import sys
from xml.etree import ElementTree

def run(files):
    first = None
    for filename in files:
        data = ElementTree.parse(filename).getroot()
        if first is None:
            first = data
        else:
            first.extend(data)
    if first is not None:
        print ElementTree.tostring(first)

if __name__ == "__main__":
    run(sys.argv[1:])

To combine files, run:

要合并文件，请运行：

python xmlcombine.py ?.xml > combined.xml

For further enhancement, consider using:

为了进一步增强，请考虑使用：

• chmod +x xmlcombine.py: Allows you to omit pythonin the command line

• xmlcombine.py !(combined).xml > combined.xml: Collects all XML files except the output, but requires bash's extgloboption

• xmlcombine.py *.xml | sponge combined.xml: Collects everything in combined.xmlas well, but requires the spongeprogram

• import lxml.etree as ElementTree: Uses a potentially faster XML parser

• chmod +x xmlcombine.py: 允许你python在命令行中省略

• xmlcombine.py !(combined).xml > combined.xml: 收集除输出之外的所有 XML 文件，但需要 bash 的extglob选项

• xmlcombine.py *.xml | sponge combined.xml：也收集所有东西combined.xml，但需要sponge程序

• import lxml.etree as ElementTree：使用可能更快的 XML 解析器

回答by eswald

Low-tech simple answer:

低技术简单的答案：

echo '<products>' > combined.xml
grep -vh '</\?products>\|<?xml' *.xml >> combined.xml
echo '</products>' >> combined.xml

Limitations:

限制：

• The opening and closing tags need to be on their own line.
• The files need to all have the same outer tags.
• The outer tags must not have attributes.
• The files must not have inner tags that match the outer tags.
• Any current contents of combined.xmlwill be wiped out instead of getting included.

• 开始和结束标签需要在自己的行上。
• 这些文件都需要具有相同的外部标签。
• 外部标签不能有属性。
• 文件不得具有与外部标签匹配的内部标签。
• 的任何当前内容都combined.xml将被清除而不是被包含在内。

Each of these limitations can be worked around, but not all of them easily.

这些限制中的每一个都可以解决，但并非所有限制都容易解决。