Scripts/Get-PSWSUSContentDownloadProgress.ps1

function Get-PSWSUSContentDownloadProgress {
    <#
    .SYNOPSIS
        Retrieves the progress of currently downloading updates. Displayed in bytes downloaded.
         
    .DESCRIPTION
        Retrieves the progress of currently downloading updates. Displayed in bytes downloaded.
    
    .NOTES
        Name: Get-PSWSUSContentDownloadProgress
        Author: Boe Prox
        DateCreated: 24SEPT2010
                
    .LINK
        https://learn-powershell.net
         
    .EXAMPLE
    Get-PSWSUSContentDownloadProgress
 
    Description
    -----------
    This command will display the current progress of the content download.
            
    #>
 
    [cmdletbinding()]  
    Param ()
    
    Begin {
        if(-not $wsus)
        {
            Write-Warning "Use Connect-PSWSUSServer to establish connection with your Windows Update Server"
            Break
        }
    }
    Process {
        #Gather all child servers in WSUS
        $wsus.GetContentDownloadProgress()       
    }
}