如何使用关键字在xml文件中grep xml块

I have a file Sample.xml which contains a lot of services inside it and the structure looks like this

我有一个文件Sample.xml,其中包含很多服务,结构如下所示

PROBLEM: INPUT: QUEUE NAME OUTPUT: SERVICE BLOCK

问题:输入:队列名称输出:服务块

sample INPUT: ABC.getme2

示例INPUT:ABC.getme2

OUTPUT:

<service name="GETME2" min="1" max="10" idleTime="300" backend="ABC">
                            <handlerContainer className="com.abc.xyz.wqere.abcqwere">
                            <handler className="com.abc.xyz.qweqweqwe.werwerwerwer"/>
                            </handlerContainer>
                            <mqListener queue="ABC.getme2" suggExpiry="30" minExpiry="4" maxExpiry="500" copyMessageId="true"/>
                    </service>

XML Structure:

     <?xml version="1.0" encoding="UTF-8"?>
        <deploymentconfig xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
                <configfile>sample.xml</configfile>
                <exceptionsFilterConfigFile>asdasd.xml</exceptionsFilterConfigFile>
                <keyInfoConfigFile>asdasd.xml</keyInfoConfigFile>
                <services>

    <service name="GETME" min="1" max="10" idleTime="300" backend="ABC">
                            <handlerContainer className="com.abc.xyz.wqere.abcqwere">
                            <handler className="com.abc.xyz.qweqweqwe.werwerwerwer"/>
                            </handlerContainer>
                            <mqListener queue="ABC.getme" suggExpiry="30" minExpiry="4" maxExpiry="500" copyMessageId="true"/>
                    </service>

    <service name="GETME2" min="1" max="10" idleTime="300" backend="ABC">
                            <handlerContainer className="com.abc.xyz.wqere.abcqwere">
                            <handler className="com.abc.xyz.qweqweqwe.werwerwerwer"/>
                            </handlerContainer>
                            <mqListener queue="ABC.getme2" suggExpiry="30" minExpiry="4" maxExpiry="500" copyMessageId="true"/>
                    </service>
        . . . .a lot of services like this . . . .
        . . . .a lot of services like this . . . .
        . . . .a lot of services like this . . . .
        . . . .a lot of services like this . . . .
        </services>
   <batchServices>
                        <batchService name="batch1">
                                <executor className="com.abc.xyz.qwer.qweqwewqe.ffdsdfsdfsdfsdf" />
                        </batchService>
                        <batchService name="batch2">
                                <executor className="com.abc.xyz.qwer.qweqwewqe.zxcsadsad" />
                        </batchService>
. . . .a lot of batch services like this . . . .
        . . . .a lot of batch services like this . . . .
        . . . .a lot of batch services like this . . . .
        . . . .a lot of batch services like this . . . .
      </batchServices>

<timerservices>
<timerservice> - a lot of timeservice
</timerservices>

  <connectionPools>
                <pool>
                        <name>asdasd</name>
                        <driver>oracle.jdbc.driver.OracleDriver</driver>
                        <url>$asdasd_URL</url>
                        <userId>$asdasd_USER</userId>
                        <password>$asdasd_PASSWORD</password>
                        <minConnections>0</minConnections>
                        <maxConnections>10</maxConnections>
                        <poolUrl>jdbc:asdsad:asdasdsad</poolUrl>
                        <testSql>select * from abc</testSql>
                </pool>

 . . a lot of pools. . .

</connectionpools>

</deploymentconfig>

I need to grep an xml block like this:

我需要像这样grep一个xml块:

 <service name="GETME" min="1" max="10" idleTime="300" backend="ABC">
                        <handlerContainer className="com.abc.xyz.wqere.abcqwere">
                        <handler className="com.abc.xyz.qweqweqwe.werwerwerwer"/>
                        </handlerContainer>
                        <mqListener queue="ABC.getme" suggExpiry="30" minExpiry="4" maxExpiry="500" copyMessageId="true"/>
                </service>

and I only need to provide the queue name

我只需要提供队列名称

QUEUENAME=INSERT_HERE
grep ______________ $QUEUENAME. . .

I tried the answer below

我试过下面的答案

xmllint --xpath '//service[@name="GETME"]' Sample.xml

and

xmllint --xpath '/services/service[@name="GETME"]' Sample.xml

and

xmlstarlet sel -t -v "/services/service[@name='GETME']/mqListener/@queue" Sample.xml

but was unsuccesful

但是不成功

Here is the output:

这是输出:

Usage : xmllint [options] XMLfiles ...
    Parse the XML files and output the result of the parsing
    --version : display the version of the XML library used
    --debug : dump a debug tree of the in-memory document
    --shell : run a navigating shell
    --debugent : debug the entities defined in the document
    --copy : used to test the internal copy implementation
    --recover : output what was parsable on broken XML documents
    --noent : substitute entity references by their value
    --noout : don't output the result tree
    --path 'paths': provide a set of paths for resources
    --load-trace : print trace of all external entites loaded
    --nonet : refuse to fetch DTDs or entities over network
    --nocompact : do not generate compact text nodes
    --htmlout : output results as HTML
    --nowrap : do not put HTML doc wrapper
    --valid : validate the document in addition to std well-formed check
    --postvalid : do a posteriori validation, i.e after parsing
    --dtdvalid URL : do a posteriori validation against a given DTD
    --dtdvalidfpi FPI : same but name the DTD with a Public Identifier
    --timing : print some timings
    --output file or -o file: save to a given file
    --repeat : repeat 100 times, for timing or profiling
    --insert : ad-hoc test for valid insertions
    --compress : turn on gzip compression of output
    --html : use the HTML parser
    --xmlout : force to use the XML serializer when using --html
    --push : use the push mode of the parser
    --memory : parse from memory
    --maxmem nbbytes : limits memory allocation to nbbytes bytes
    --nowarning : do not emit warnings from parser/validator
    --noblanks : drop (ignorable?) blanks spaces
    --nocdata : replace cdata section with text nodes
    --format : reformat/reindent the input
    --encode encoding : output in the given encoding
    --dropdtd : remove the DOCTYPE of the input docs
    --c14n : save in W3C canonical format (with comments)
    --exc-c14n : save in W3C exclusive canonical format (with comments)
    --nsclean : remove redundant namespace declarations
    --testIO : test user I/O support
    --catalogs : use SGML catalogs from $SGML_CATALOG_FILES
                 otherwise XML Catalogs starting from 
             file:///etc/xml/catalog are activated by default
    --nocatalogs: deactivate all catalogs
    --auto : generate a small doc on the fly
    --xinclude : do XInclude processing
    --noxincludenode : same but do not generate XInclude nodes
    --loaddtd : fetch external DTD
    --dtdattr : loaddtd + populate the tree with inherited attributes 
    --stream : use the streaming interface to process very large files
    --walker : create a reader and walk though the resulting doc
    --pattern pattern_value : test the pattern support
    --chkregister : verify the node registration code
    --relaxng schema : do RelaxNG validation against the schema
    --schema schema : do validation against the WXS schema
    --schematron schema : do validation against a schematron
    --sax1: use the old SAX1 interfaces for processing
    --sax: do not build a tree but work just at the SAX level

Libxml project home page: http://xmlsoft.org/
To report bugs or get some help check: http://xmlsoft.org/bugs.html

Here is the version

这是版本

xmllint: using libxml version 20626

2 个解决方案

#1

The command is almost right, you only have to fix the XPATH expression:

该命令几乎是正确的,您只需修复XPATH表达式:

xmllint --xpath '//service[@name="GETME"]' Sample.xml
                          \ no slash hare

However, you have to check whether your xmllint actually supports XPATHs:

但是,您必须检查xmllint是否实际支持XPATH:

$ xmllint --version
xmllint: using libxml version 20902
   compiled with: Threads Tree Output Push Reader Patterns Writer
   SAXv1 FTP HTTP DTDValid HTML Legacy C14N Catalog XPath XPointer
   XInclude Iconv ISO8859X Unicode Regexps Automata Expr Schemas
   Schematron Modules Debug Zlib Lzma

#2

An alternate tool for the purpose is XMLStarlet:

另一个用于此目的的工具是XMLStarlet:

xmlstarlet sel -t -c '//service[@name="GETME"]' -n <Sample.xml

Incidentally, xmlstarlet can also output XSLT which you can apply with xsltproc, and thus on systems without xmlstarlet installed. In this case:

顺便提一下,xmlstarlet还可以输出XSLT,您可以使用xsltproc,因此在没有安装xmlstarlet的系统上。在这种情况下:

<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output omit-xml-declaration="yes" indent="no"/>
  <xsl:template match="/">
    <xsl:copy-of select="//service[@name=&quot;GETME&quot;]"/>
    <xsl:value-of select="'&#10;'"/>
  </xsl:template>
</xsl:stylesheet>

#1