january-2016-scripting-games-puzzle

january-2016-scripting-games-puzzle.ps1

function Get-Uptime{

    [CmdletBinding()]    
    param
    (
        [Parameter(ValueFromPipeline=$true,
                   ValueFromPipelineByPropertyName=$true)]
        [ValidateNotNullOrEmpty()]
        [String[]]$ComputerName = $env:COMPUTERNAME
    )
    
    PROCESS{
        foreach($computer in $ComputerName){
            $isAlive = Test-Connection -ComputerName $computer -Count 1 -Quiet

            if($isAlive -eq $true){
                $compSystem = Get-WmiObject -ComputerName $computer -ClassName Win32_ComputerSystem
                $osSystem = Get-WmiObject -ComputerName $computer -ClassName Win32_OperatingSystem
                
                $bool = ((Get-Date)-$osSystem.ConvertToDateTime($osSystem.LastBootUpTime)).Days -gt 30

                $hash = [ordered]@{
                    ComputerName = $compSystem.Name
                    StartTime = $osSystem.ConvertToDateTime($osSystem.LastBootUpTime)
                    "Uptime (Days)" = ((Get-Date)-$osSystem.ConvertToDateTime($osSystem.LastBootUpTime)).Days
                    Status = "OK"
                    MightNeedPatched = $bool
                }
            $obj = New-Object -TypeName psobject -Property $hash
            $obj
            }
            else{
                $hash = [ordered]@{
                ComputerName = $computer
                StartTime = ""
                "Uptime (Days)" = ""
                Status = "ERROR"
                MightNeedPatched = ""
                }
            Write-Warning -Message "$computer is Offline"
            $obj = New-Object -TypeName psobject -Property $hash
            $obj      
            }
        }
    }
}