从 xml 文件中提取或 grep 值

Question

我正在使用 xgrep 和 xmlgrep 从 XML 文件中查找某些信息 (http://pastebin.com/1BJEWVJJ)

示例片段

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE cXML SYSTEM "http://xml.cXML.org/schemas/cXML/1.2.014/cXML.dtd">
<cXML xml:lang="en" payloadID="2015-02-24T14:17:26_3764135.ConfirmationRequest@axis.mincom.com" timestamp="2015-02-24T14:17:26+10:00">
<Header>
<From>
<Credential domain="SpotlessBranchID">
<Identity>
L678</Identity>
</Credential>
<Credential domain="SupplierCustno">
<Identity>
SPOWOC</Identity>
</Credential>
<Credential domain="MincomAxis">
<Identity>
101000026139003</Identity>
</Credential>
</From>
<To>
<Credential domain="SpotlessSAPSupplierID">
<Identity>
0002010354</Identity>
</Credential>
<Credential domain="SpotlessSupplierID">
<Identity>
0002010354</Identity>
</Credential>

我想提取 SpotLessSupplierID 标识值（例如 0002010354）

我试过 xgrep -s 'Credential:Identity/.*/' PO_3764135.xml 但输出太多（"Credential" 太多）

<!--         Start of node set (Search: Credential:Identity/.*/)                 -->
<!--         Node   0 in node set               -->
<Credential domain="SpotlessBranchID">
  <Identity>L678</Identity>
</Credential>

<!--         Node   1 in node set               -->
<Credential domain="SupplierCustno">
  <Identity>SPOWOC</Identity>
</Credential>

<!--         Node   2 in node set               -->
<Credential domain="MincomAxis">
  <Identity>101000026139003</Identity>
</Credential>

<!--         Node   3 in node set               -->
<Credential domain="SpotlessSAPSupplierID">
  <Identity>0002010354</Identity>
</Credential>

<!--         Node   4 in node set               -->
<Credential domain="SpotlessSupplierID">
  <Identity>0002010354</Identity>
</Credential>

<!--         Node   5 in node set               -->
<Credential domain="MincomAxis">
  <Identity>101000321896001</Identity>
</Credential>

<!--         Node   6 in node set               -->
<Credential domain="SpotlessBranchID">
  <Identity>L678</Identity>
</Credential>

<!--         Node   7 in node set               -->
<Credential domain="MincomAxisTPID">
  <Identity>101000026139</Identity>
</Credential>

<!--         End of node set                    -->

Answer 1

XmlStarlet在这些情况下是一个非常有用的工具，你可以下载并试试这个：

xmlstarlet sel -t -m "//header/To/Credential[@domain = 'SpotlessSAPSupplierID']" -v Identity -n /path_to_your_xml_file

用于文档：这是最好的 link： XmlStarlet

从 xml 文件中提取或 grep 值

extract or grep value from xml file

xml

grep

redhat

xmlstarlet