Find SCCM Device Variables Using Powershell

Sometimes you want a report of all the variables that computer/device will have when it runs the task sequence.

Here's a script that will report ...
a) device name
b) device assigned variables
c) Collection name with the assigned variables of which the device is a member.

It requires the SCCM console installed and you must provide the computer name in the command line.

The script will report back if the computer name is not valid and kill the powershell process.
For testing, run the script from a command prompt. i.e. powershell .\variables.ps1 computername

param (
    [Parameter(Mandatory=$true, HelpMessage="Computer Name",ValueFromPipeline=$true)] $strComputer
)
[System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')
[System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
cls
import-module ($Env:SMS_ADMIN_UI_PATH.Substring(0,$Env:SMS_ADMIN_UI_PATH.Length-5) + '\ConfigurationManager.psd1')
CD SITENAME:\
$nl = [Environment]::NewLine
$tab = "`t" #tab
$count = -1 # Allows for Null
write-host Checking Computer Name
If(!$strComputer){
    [System.Windows.Forms.MessageBox]::Show("Error! - No Source Computer Entered")
    stop-process $pid -Force #End Powershell task
}
#Verify Names
$Verify =  Get-CMDevice -Name $strComputer | forEach{$_.name}
If(!$Verify){
    [System.Windows.Forms.MessageBox]::Show("No Record for "+ $strComputer)
    stop-process $pid -Force #End Powershell task
}
#Get-CMDeviceVariable -DeviceName <String>
# Find System Variables
write-host Checking System Variables
$Result = Get-CMDeviceVariable -DeviceName $strComputer
If(!$Result){
    #write-host $strComputer Not Found
    $strOutput = $strComputer
}
else{
    $Result = Get-CMDeviceVariable -DeviceName $strComputer | forEach{$_.Name + $tab + $_.Value} |Out-String
    $strOutput = $strComputer.toUpper() + " Assigned Device Variables"+ $nl + "Variable Name" +$tab +"Variable Value" +$nl + $Result
}
If($ErrCount -ge 1){
    [System.Windows.Forms.MessageBox]::Show("Error" + $ErrCount)
    stop-process $pid -Force #End Powershell task
}
$strOutput = $strOutput + $nl + $strComputer.toUpper() + " Assigned Collection Variables"
write-host Checking Collection Variables
#Find Collection Variables
$ResID = Get-CMDevice -Name $strComputer | forEach{$_.ResourceID}
$Collections = (Get-WmiObject -ComputerName "SCCM SERVER NAME" -Class sms_fullcollectionmembership -Namespace root\sms\site_SITENAME -Filter "ResourceID = '$($ResID)'").CollectionID
foreach($collection in $Collections){
    $CollName = Get-CMDeviceCollection -CollectionId $Collection | forEach{$_.name}
    write-host $CollName
    $CollVar = Get-CMDeviceCollectionVariable -CollectionName $CollName | forEach{$CollName + $tab + $_.Name + $tab + $_.Value} |Out-String
    If ($CollVar){
        $CollOutput = "Collection Name" +$tab + "Variable Name" + $tab + "Variable Value"
        $CollOutput = $CollOutPut + $nl + $CollVar
    }
}
$strOutput = $strOutput + $nl + $CollOutput
#[System.Windows.Forms.MessageBox]::Show($strOutput)
[IO.File]::WriteAllText('variables.txt', $strOutput)

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