Powershell foreach loop with multiple if statements

Question

I have a script snippet that basically gets some unformated xml type output from a command.

Then in a defined filter section I'm transforming that into xml and run a search loop on each node, as from the part below.

What I'm trying to figure out is how I can make a multiple if -and loop, like if (($CimProperty.VALUE -eq $somevariable) -and ($CimProperty.VALUE -eq $something-else))

The only problem is that since it's a foreach loop it won't take it, as it takes each property at a time and then the 'if statement -and portion' for it, which doesn't work since it's the same xml type property section. In other words the loop doesn't go through the entire array to identify both conditions from the if statement.

PS code snippet:

filter Import-CimXml
{
    $CimXml = [Xml]$_
    $CimObj = New-Object -TypeName System.Object
    foreach ($CimProperty in $CimXml.SelectNodes(“/INSTANCE/PROPERTY”))
    {
        if ($CimProperty.VALUE -eq $somevariable)
          {
             write-host "found it"
          }
    }
 }

I hope the scenario is clear, thanks everyone in advance!

Joachim Isaksson · Accepted Answer · 2013-12-29 17:27:06Z

1

For just two conditions, you can make it fairly straight forward like (the untested);

filter Import-CimXml
{
    $foundfirst  = $false
    $foundsecond = $false
    $CimXml = [Xml]$_
    $CimObj = New-Object -TypeName System.Object
    foreach ($CimProperty in $CimXml.SelectNodes(“/INSTANCE/PROPERTY”))
    {
        if ($CimProperty.VALUE -eq $somevariable)
        {
            $foundfirst = $true
        }
        if ($CimProperty.VALUE -eq $someothervariable)
        {
            $foundsecond = $true
        }
    }
    if ($foundfirst -and $foundsecond)
    {
        write-host "found it"
    }
}

For more conditions, you may want to use arrays of corresponding matchwords/booleans instead.

answered Dec 29, 2013 at 17:27

Joachim Isaksson

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1 Comment

user3144292 Over a year ago

That worked perfectly Joachim, I was fixed on figuring a way without the use of other variables and ways, but I've just followed your solution and it works. Thanks a lot!

Frode F. · Accepted Answer · 2013-12-29 18:25:00Z

1

Just extend your xpath query to do it all. It's less code and should be more efficient.

filter Import-CimXml
{
    $CimXml = [Xml]$_
    $CimObj = New-Object -TypeName System.Object
    if($CimXml.SelectNodes(“/INSTANCE[PROPERTY='$somevariable' and PROPERTY='$someothervariable']”).Count -gt 0) { 
        write-host "found it" 
    }
 }

answered Dec 29, 2013 at 18:25

Frode F.

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