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Top Forums Shell Programming and Scripting sed search and replace after xml tag Post 302974774 by varunrapelly on Friday 3rd of June 2016 06:44:26 AM
Old 06-03-2016
Question sed search and replace after xml tag

Hi All,
I'm new to sed.

In following XML file
Code:
   <interface type='direct'>
      <mac address='52:54:00:86:ce:f6'/>
      <source dev='eno1' mode='bridge'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <interface type='direct'>
      <mac address='52:54:00:ab:d5:77'/>
      <source dev='eno2' mode='bridge'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </interface>

i have add one new xml tag after <source dev='eno1' mode='bridge'/>, which is <target dev='New1'/>.

Code:
for i in `eno1 eno2 eno3 eno4`
do
        echo "Updating macvtap device names for $i"
	sed -i.bak "/source dev='$i'/a <target dev='New$cnt'/>" 
$XML_FILE
    	cnt=`expr $cnt + 1`
done

The above is not working. Please let me know how to do it?



Moderator's Comments:
Mod Comment Please use code tags as required by forum rules!

Last edited by RudiC; 06-03-2016 at 11:50 AM.. Reason: Added code tags.
 

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XMLSTARLET(1)							 xmlstarlet Manual						     XMLSTARLET(1)

NAME
xmlstarlet - command line XML/XSLT toolkit SYNOPSIS
xmlstarlet [<options>] [<command>] [<cmd-options>] INTRODUCTION
XMLStarlet is a set of command line utilities (tools) which can be used to transform, query, validate, and edit XML documents and files us- ing simple set of shell commands in similar way it is done for plain text files using UNIX grep, sed, awk, diff, patch, join, etc commands. This set of command line utilities can be used by those who deal with many XML documents on UNIX shell command prompt as well as for auto- mated XML processing with shell scripts. OPTIONS
--version Display the version of xmlstarlet. --help Display help. COMMANDS
Type: xml <command> --help <ENTER> for command help Available commands include: ed (or edit) Edit/update XML document(s). sel (or select) Select data or query XML document(s) (XPATH, etc). tr (or transform) Transform XML documents(s) using XSLT. val (or validate) Validate XML document(s) (well-formed/DTD/XSD/RelaxNG). fo (or format) Format XML document(s). el (or elements) Display element structure of XML document. c14n (or canonic) XML canonicalization. ls (or list) List directory as XML. esc (or escape) Escape special XML characters. unesc (or unescape) Unescape special XML characters. pyx (or xmln) Convert XML into PYX format (based on ESIS - ISO 8879). p2x (or depyx) Convert PYX into XML. REFERENCES
XMLStarlet is a command line toolkit to query/edit/check/transform XML documents (for more information see http://xmlstar.source- forge.net/). AUTHOR
Mikhail Grushinskiy. XMLSTARLET(1)
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