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Full Discussion: replace string in XML with sed
Top Forums Shell Programming and Scripting replace string in XML with sed Post 302183711 by fpmurphy on Wednesday 9th of April 2008 07:49:05 PM
Old 04-09-2008
The best way of handling this type of problem is using XSLT and a stylesheet.

Here is a stylesheet (file.xsl) which will do what you want:
Code:
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:param name="NAME"/>

<xsl:template match="name">
    <name><xsl:value-of select="$NAME"/></name>
</xsl:template>

<xsl:template match="*|text()|@*">
    <xsl:copy>
        <xsl:apply-templates select="@*"/>
        <xsl:apply-templates/>
    </xsl:copy>
</xsl:template>

</xsl:stylesheet>

Assuming for the purpose of this example that you want to change "abcd" to "Finnbarr" and that you have xsltproc installed on your system, here is how you would do the transformation together with the resulting output:

Code:
$ xsltproc -param NAME "'Finnbarr'" file.xsl file.xml
<?xml version="1.0"?>
<component>
       <name>Finnbarr</name>
       <value>1234</value>
</component>
$

Note the double and single quotes around the vale of the NAME parameter. These are required.
 

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LEARN ABOUT DEBIAN

template::xml

Template::XML(3pm)					User Contributed Perl Documentation					Template::XML(3pm)

NAME

       Template::XML - XML plugins for the Template Toolkit

SYNOPSIS

	   [% USE XML;

	      dom    = XML.dom('foo.xml');
	      xpath  = XML.xpath('bar.xml');
	      simple = XML.simple('baz.xml');
	      rss    = XML.simple('news.rdf');
	   %]

DESCRIPTION

       The Template-XML distribution provides a number of Template Toolkit plugin modules for working with XML.

       The Template::Plugin::XML module is a front-end to the various other XML plugin modules.  Through this you can access XML files and direc-
       tories of XML files via the Template::Plugin::XML::File and Template::Plugin::XML::Directory modules (which subclass from the Tem-
       plate::Plugin::File and Template::Plugin::Directory modules respectively).  You can then create a Document Object Model (DOM) from an XML
       file (Template::Plugin::XML::DOM), examine it using XPath queries (Template::Plugin::XML::XPath), turn it into a Perl data structure (Tem-
       plate::Plugin::XML::Simple) or parse it as an RSS (RDF Site Summary) file.

       The basic XML plugins were distributed as part of the Template Toolkit until version 2.15 released in May 2006.	At this time they were
       extracted into this separate Template-XML distribution and an alpha version of this Template::Plugin::XML front-end module was added.

AUTHORS

       Andy Wardley wrote the Template Toolkit plugin modules, with assistance from Simon Matthews in the case of the XML::DOM plugin.	Matt
       Sergeant wrote the XML::XPath module.  Enno Derksen and Clark Cooper wrote the XML::DOM module.	Jonathan Eisenzopf wrote the XML::RSS mod-
       ule.  Grant McLean wrote the XML::Simple module.  Clark Cooper and Larry Wall wrote the XML::Parser module.  James Clark wrote the expat
       library.

COPYRIGHT

       Copyright (C) 1996-2006 Andy Wardley.  All Rights Reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       Template, Template::Plugins, Template::Plugin::XML, Template::Plugin::XML::DOM, Template::Plugin::XML::RSS, Template::Plugin::XML::Simple,
       Template::Plugin::XML::XPath

perl v5.8.8							    2008-03-01							Template::XML(3pm)
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