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<#@
.SYNOPSIS Gets the uptime and last boot time from remote or local computer
.PARAMETER computername
The computer name or names to query DEFAULT: localhost
.EXAMPLE get-upt -computername localhost
#>
Function get-upt{
[CmdLetBinding()]
param (
[parameter(Mandatory=$true)]
[string]$comp_name
)
write-verbose “connecting to $comp_name”
$os = Get-WmiObject win32_OperatingSystem -ComputerName $comp_name
$boottime = $os.ConvertToDateTime($os.lastbootuptime)
$uptime = New-TimeSpan (get-date $boottime)
$uptime_days = [int]$uptime.Days
$l = “$comp_name,$boottime,$uptime_days”
$l | Out-File c:\uptime.csv -Append
write-verbose “… finished”
}
$servernames = Get-Content C:\Servers.txt
foreach ($servername in $servernames){
if (Test-Connection -ComputerName $servername -count 1 -Quiet){
get-upt $servername -Verbose
}
}