Lab 6

Function Test {
    #Allow Verbose
    [cmdletbinding()]
    param(
        #Make computer name parameter mandatory
        [parameter(Mandatory=$True,
                   Valuefrompipeline=$True)]
        #allow user to use hostname alias
        [Alias('hostname')]
        [string[]]$computername,
        #log errors
        [switch]$ErrorLog
    )

    BEGIN{
        #If errorlog siwtch is on start
        if ($ErrorLog) {
            #use [cmdletbinding()] to display write-verbose
            Write-Verbose "Error Log On"
            $i = 0
            #Do this loop if Errorlog switch is on
            Do {
                $LogFile = "names-$i.txt"
                $i++
            #Check for path if exist create new file
            } While (Test-Path $LogFile)
            Write-Verbose "LogFile name is $LogFile"
        } else {
            #If Errorlog switch is off
            Write-Verbose "Error Log Off"
        }

    }
    PROCESS{
        Write-Verbose "Connecting to $Computer"
        #log file to $logfile
        if ($ErrorLog) {
            $Computer | Out-File $LogFile -Append
        }
        #set specific output to this variable
        $adminpasswordstatus = Get-WmiObject -class Win32_ComputerSystem | Select-Object -ExpandProperty AdminPasswordStatus
        switch ($adminpasswordstatus)
        {
            1 {'Disabled'}
            2 {'Enabled'}
            3 {'NA'}
            4 {'Unknown'}
            default {'Try Again'}
        }
        #for each computer grab this information
        foreach ($comps in $computername) {
            $cs         = Get-WmiObject -Class Win32_ComputerSystem -ComputerName $computername  | Select-Object Domain
            $os         = Get-WmiObject -Class Win32_OperatingSystem -ComputerName $computername | Select-Object Version,ServicePackMajorVersion
            $bios       = Get-WmiObject -Class Win32_Bios -ComputerName $computername            | Select-Object SerialNumber
            $properties = @{'ComputerName' =$computername;
                            'Domain'       =$cs.Domain;
                            'AdminPassword'=$AdminPasswordStatus;
                            'OSVersion'    =$os.version;
                            'ServicePack'  =$os.servicepackmajorversion;
                            'SerialNumber' =$bios.SerialNumber}
            #take objects from hash table and convert to object
            $obj = New-Object -TypeName PSObject -Property $properties

        }
    }

    END{
        #write object named $obj
        Write-Host "$obj"

    }

}

test -computername localhost -errorlog -verbose