Powershell script to update XML file content

Question

Please help me create a Powershell script that will go through an XML file and update content. In the example below, I want to use the script to pull out and change the file path in the Config.button.command example. Change C:ProgLaun.jar to C:Prog32folderest.jar. Please help. Thanks.

<config>
 <button>
  <name>Spring</name>
  <command>
     C:sy32java.exe -jar "C:ProgLaun.jar" YAHOO.COM --type SPNG --port 80
  </command>
  <desc>studies</desc>
 </button>
 <button>
  <name>JET</name>
    <command>
       C:sy32java.exe -jar "C:ProgLaun.jar" YAHOO.COM --type JET --port 80
    </command>
  <desc>school</desc>
 </button>
</config>

question from:https://stackoverflow.com/questions/16428559/powershell-script-to-update-xml-file-content

Answer 1

I know this is an old post but this may help others so...

If you specifically know the elements that you are looking for then you can simply specify the element like so:

# Read the existing file
[xml]$xmlDoc = Get-Content $xmlFileName

# If it was one specific element you can just do like so:
$xmlDoc.config.button.command = "C:Prog32folderest.jar"
# however this wont work since there are multiple elements

# Since there are multiple elements that need to be 
# changed use a foreach loop
foreach ($element in $xmlDoc.config.button)
{
    $element.command = "C:Prog32folderest.jar"
}
    
# Then you can save that back to the xml file
$xmlDoc.Save("c:savelocation.xml")