$Servers = Get-Content Servers.txt
foreach($Server in $Servers)
{
$wmi=Get-WmiObject -class Win32_OperatingSystem -computer $server
$LBTime=$wmi.ConvertToDateTime($wmi.Lastbootuptime)
[TimeSpan]$uptime=New-TimeSpan $LBTime $(get-date)
Write-host $server Uptime: $uptime.days Days $uptime.hours Hours $uptime.minutes Minutes $uptime.seconds Seconds
}
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