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Top Forums UNIX for Beginners Questions & Answers How to insert subnode in xml file using xmlstarlet or any other bash command? Post 303038590 by Sekhar419 on Friday 6th of September 2019 04:26:30 PM
Old 09-06-2019
How to insert subnode in xml file using xmlstarlet or any other bash command?

I have multiple xml files where i want to update a subnode if the subnode project points to different project or insert a subnode if it doesn't exist using a xmlstarlet or any other command that can be used in a bash script.

I have been able to update the subnode project if it doesn't point to the right project using xml starlet command, but i am not able to insert subnode project if the project tag doesn't exist.

I have tried.

Code:
xmlstarlet ed -P --update "///module[@id='pxc110237_1']/@project" -v"X1" --insert"///module[@id='pxc110237_1']/@project --type attr -n style -v"X1" file.xml

The file looks like:
Code:
 <?xml version="1.0"?>
  <kgcontent>
    <containers>
       <module project="ANY" level="1" id="pxc110233_1"/>
       <module project="X1" level="1" id="pxc110234_1"/>
       <module id="pxc110235_1"/>
    </containers>
  <kgcontent>

I want the output to look like:
Code:
<?xml version="1.0"?>
  <kgcontent>
    <containers>
       <module project="ANY" level="1" id="pxc110233_1"/>
       <module project="X1" level="1" id="pxc110234_1"/>
       <module project="X1" id="pxc110235_1"/>
    </containers>
  <kgcontent>

The starlet command i used doesn't have any effect on the file. how can i fix the above problem? any pointers would be great help Smilie

Linux distrubution: SUSE
Shell: Bash

Thank you!
This User Gave Thanks to Sekhar419 For This Post:
 

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PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME
Pacemaker - Part of the Pacemaker cluster resource manager SYNOPSIS
crm_diff original_xml operation [options] DESCRIPTION
crm_diff - A utility for comparing Pacemaker configurations (XML format) The tool produces a custom (diff-like) output which it can also apply like a patch OPTIONS
-?, --help This text -$, --version Version information -V, --verbose Increase debug output Original XML: -o, --original=value XML is contained in the named file -O, --original-string=value XML is contained in the supplied string Operation: -n, --new=value Compare the original XML to the contents of the named file -N, --new-string=value Compare the original XML to the contents of the supplied string -p, --patch=value Patch the original XML with the contents of the named file Additional Options: -c, --cib Compare/patch the inputs as a CIB (includes versions details) -f, --filter Suppress irrelevant differences between the two inputs EXAMPLES
Obtain the two different configuration files by running cibadmin on the two cluster setups to compare: # cibadmin --query > cib-old.xml # cibadmin --query > cib-new.xml Calculate and save the difference between the two files: # crm_diff --original cib-old.xml --new cib-new.xml > patch.xml Apply the patch to the original file: # crm_diff --original cib-old.xml --patch patch.xml > updated.xml Apply the patch to the running cluster: # cibadmin --patch patch.xml AUTHOR
Written by Andrew Beekhof REPORTING BUGS
Report bugs to pacemaker@oss.clusterlabs.org Pacemaker 1.1.10-29.el7 June 2014 PACEMAKER(8)
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