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XML to Text file Parsing Using shell scripting

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# 1  
Old 04-10-2012
XML to Text file Parsing Using shell scripting
Hi folks,
Need some help with XML to text file parsing , the following is the content of the XML File.
Code:
<xn:SubNetwork id="SNJNPRZDCR0R03">
                <xn:MeContext id="PRSJU0005">
                    <xn:VsDataContainer id="PRSJU0005">
                        <xn:attributes>
                            <xn:vsDataType>vsDataMeContext</xn:vsDataType>
                            <xn:vsDataFormatVersion>EricssonSpecificAttributes.11.03</xn:vsDataFormatVersion>
                            <es:vsDataMeContext>
                                <es:userLabel>PRSJU0005</es:userLabel>
                                <es:ipAddress>166.206.252.42</es:ipAddress>
                                <es:neMIMversion>vN.1.4</es:neMIMversion>
                                <es:lostSynchronisation>SYNCHRONISED</es:lostSynchronisation>
                                <es:rbsIubId>214</es:rbsIubId>
                                <es:multiStandardRbs6k>false</es:multiStandardRbs6k>
                                <es:mirrorMIBversion>N.1.12.K.1.3</es:mirrorMIBversion>
                            </es:vsDataMeContext>
                        </xn:attributes>
                    </xn:VsDataContainer>
                </xn:MeContext>
    </xn:SubNetwork>
<xn:SubNetwork id="LSVLKY53CR0R02">
                <xn:MeContext id="KYLSU1005">
                    <xn:VsDataContainer id="KYLSU1005">
                        <xn:attributes>
                            <xn:vsDataType>vsDataMeContext</xn:vsDataType>
                            <xn:vsDataFormatVersion>EricssonSpecificAttributes.11.03</xn:vsDataFormatVersion>
                            <es:vsDataMeContext>
                                <es:userLabel>KYLSU1005</es:userLabel>
                                <es:ipAddress>107.71.129.250</es:ipAddress>
                                <es:neMIMversion>vN.1.4</es:neMIMversion>
                                <es:lostSynchronisation>SYNCHRONISED</es:lostSynchronisation>
                                <es:rbsIubId>1005</es:rbsIubId>
                                <es:multiStandardRbs6k>false</es:multiStandardRbs6k>
                                <es:mirrorMIBversion>N.1.12.K.1.3</es:mirrorMIBversion>
                            </es:vsDataMeContext>
                        </xn:attributes>
                    </xn:VsDataContainer>
                </xn:MeContext>
    </xn:SubNetwork>

The Desired Output should be in a text file eg:
Code:
SubNetwork id    MeContext id    ipAddress
SNJNPRZDCR0R03    PRSJU0005    166.206.252.42
LSVLKY53CR0R02    KYLSU1005    107.71.129.250

Any Help would be greatly Appreciated.
Last edited by Franklin52; 04-10-2012 at 07:22 AM.. Reason: Please use code tags for code and data samples, thank you
# 2  
Old 04-10-2012
Do you want just three fields from the entire file? Based on the sample file u have given, you have picked up only Subnet, Context and IP Address.
# 3  
Old 04-10-2012
yes losttouch, i only want those three fields.

Thanks//
# 4  
Old 04-10-2012
Install perl XML::XPath module
Code:
# yum install perl-XML-XPath.noarch
or
# perl -MCPAN -e 'install XML::XPath'

Try this:
Code:
#! /usr/bin/perl
use XML::XPath;
$,=" ";

$xp=XML::XPath->new($ARGV[0]);
$nodes=$xp->find('//xn:SubNetwork');
foreach $i ($nodes->get_nodelist) {
        $sn=$i->getAttribute("id");
        foreach $j ($i->find('xn:MeContext')->get_nodelist) {
                $mc=$j->getAttribute("id");
                foreach $k ($j->find('xn:VsDataContainer/xn:attributes/es:vsDataMeContext/es:ipAddress/text()')->get_nodelist) {
                        print $sn, $mc, $k->getNodeValue(),"\n";
                }
        }
}

This User Gave Thanks to chihung For This Post:
tech_frk
# 5  
Old 04-11-2012
try xmllint

check out
openSUSE Lizards

Have a look at section under "Using Namespaces in XPath Expressions"
# 6  
Old 04-11-2012
Code:
nawk -F"[\"\>\<]" 'BEGIN{print "SubNetwork id    MeContext id    ipAddress"} /SubNetwork id/{a=$3} /userLabel/{b=$3}/ipAddress/{print a,b,$3}' input.txt

# 7  
Old 04-11-2012
Thank you itkamaraj , the command worked like a charm.
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