How to get a specific string from xml in powershell

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I am facing a problem. I want to get a specific idstring of product node from XML content.

Example: Run $xml.group.product[0].id it returns 1234/5678 But I just want a $variable="1234" to match id = "1234/5678" to get or return a index of array ofproduct node

How can I do that?

$xml=[xml]@"
<?xml version="1.0" encoding="UTF-8"?>
<group>
  <product description="phone" id="1234/5678">
     <item name="apple" version="50" />
     <item name="banana" version="100" />
  </product>
  <product description="notebook" id="6666/7777">
     <item name="orange" version="150" />
  </product>
</group>
"@

Select-Xml (Microsoft.PowerShell.Utility), On the other hand, if you have a specific node that you're trying to get to or have a common node, such as 'name' or 'title', then you may choose to� STEP 3: The Select-Xml cmdlet lets you use XPath queries to search for text in XML strings and documents. Enter an XPath query, and use the Content, Path, or Xml parameter to specify the XML to be searched. Select-Xml -Path $Path -XPath $Xpath | Select-Object -ExpandProperty Node

If I understand it correctly, you want to retrieve a product based on a specific id?

You can do this using the Where-Object cmdlet. Example:

$xml.group.product | Where-Object { $_.id -eq '1234/5678'}

Search XML files with PowerShell using Select-XML, What I need to do is extract the data in powershell, and then create the HTML part . I've got most of I am just not sure how to get those user elements and build a string out of them to insert into my HTML. Extracting specific strings from xml. This is a little painful, so instead I created this function that will get you the node if it exists, and return $null if it doesn’t: function Get-XmlNode( [ xml ]$XmlDocument, [string]$NodePath, [string]$NamespaceURI = "", [string]$NodeSeparatorCharacter = '.')

There are a couple of ways I can think to quickly do this.

$xml.group.product | Where-Object{$_.id -match "^1234/"}

This basically means starts with 1234 and should output something like:

description id


phone 1234/5678

If you only want the first part you are going may have to split it off :

($xml.group.product | Where-Object{$_.id -match "^1234/"}).id.Split("/")[0]

It might help to know what the 2 parts of the number mean. if there's an intention on using that first part throughout the program, it might be worth adding it as it's own property.

Oh if you really want to return a Boolean the RegEx match will still work. but it would look more like:

'1234/5678' -match '^1234/'

This would return true, but given you have multiple products the If logic will have to be in a loop somewhere. In the answers so far the loop and the if logic are implied by the Where clause.

Let me know if that helps...

Extracting Data from XML - PowerShell General, STEP 2: Read the xml file using get-content cmdlet and assign to variable. cmdlet lets you use XPath queries to search for text in XML strings and documents. The simplest (but case-sensitive) way to perform literal prefix matching is to use the [string] type's.StartsWith () method. You can combine it with the.Where () array method (PSv4+) to find the first matching element whose id attribute value starts with a given prefix, along with its (zero-based) index among its siblings.

Considering the discussion:

$Index = $null
$Products = @($xml.group.product)
$Product = 
:loop For($i = 0; $i -lt $Products.Length; ++$i)
{
    If($Products[$i].id -match "^1234/") {
        $Products[$i]
        $Index = $i
        break loop
    }
}

Write-Host "Last index : $Index"
$Product

Recognizing the -1 trick from mklement0, but still playing around. I did have the same issue I mentioned, if there happens to be only 1 product there's no length property, so the loop won't even run. I had to wrap in @() to get around that. I can't flip to a string because 0 will always be -lt .length. So I thought I was being smart by spitting out $i after the break, but it will incorrectly be 0 too often.

So I had to use $Index. In concept this isn't very different if $Index is $null you didn't get a hit versus if $ndx is -1 you didn't get a hit. It also forced me to introduce $Products as wrapping in @() right in the For statement also showed some issues.

So this is a lot less concise... Just an exercise mklement0's answer is likely to be faster. Forgive me for going on & on...

Reading XML Files With PowerShell, On top of that, you'll probably also have to learn to write obscure XPath queries to find the content in a XML document. PowerShell and Reading� PowerShell provides an easy way to persist objects by using Export-Clixml to serialize any object and store it in an XML file and Import-Clixml to restore the object from XML. With XML, unlike most other serialization techniques, object integrity is preserved: upon restoring an object from XML all properties are properly typed as is the parent

How to read xml files with PowerShell, Hi Team,. I want to find the specific string on xml file which is saved on my local, and once it find the string wants to see the search results like if� To see the examples, type: “get-help Select-String -examples”. For more information, type: “get-help Select-String -detailed”. For technical information, type: “get-help Select-String -full”. PS C:\> I hope this gives you an idea how you can use a grep and findstr replacement in PowerShell using Select-String.

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Comments
  • If your question isn't fully answered yet, please provide feedback.
  • Note that you don't need the loop label (:loop), given that there are no nested loops.