powershell find dynamic variables within xml


powershell find dynamic variables within xml



I have performed a web request that returns $xml.
Write-Host $xml.status.audio.volume outputs 56 as it should. Thus I know the XML is OK.


$xml


Write-Host $xml.status.audio.volume



Then I read a file to determine what XML attributes I need to look at:



How do I use that attribute (eg. status.audio.volume) to output or test if the $xml has the value I expect?


status.audio.volume


$xml



e.g. (pseudocode) If $xstatus.status.audio.volume = 56 Then ...


If $xstatus.status.audio.volume = 56 Then ...





Have you tried Compare-Object?
– TheMadTechnician
Jun 28 at 23:45


Compare-Object





I guess I am not explaining correctly. I can hard code something like if $xstatus.status.audio.volume = 56 and that would work, but I need to read the attribute part from a file "status.audio.volume". Then somehow need to concatenate if to $xstatus so I can perform the validation that 56 exists for that attribute.
– user10008227
Jun 29 at 0:01






$xml.SelectSingleNode('status/audio/volume')."#text" ; replace the . with / in the text you read from the file, to make it a valid XPath expression.
– TessellatingHeckler
Jun 29 at 1:29


$xml.SelectSingleNode('status/audio/volume')."#text"


.


/





Thank you. Seems to work with a beginning /.
– user10008227
Jun 29 at 1:43










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