Get-Uptime.ps1
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<#
.SYNOPSIS Get-Uptime retrieves boot up information from a computer. .DESCRIPTION Get-Uptime uses WMI to retrieve the Win32_OperatingSystem LastBootuptime property. It displays the start up time as well as the uptime. Created By: Jason Wasser @wasserja Modified: 8/13/2015 01:59:53 PM Version 1.4 Changelog: * Added Credential parameter * Changed to property hash table splat method * Converted to function to be added to a module. .PARAMETER ComputerName The Computer name to query. Default: Localhost. .EXAMPLE Get-Uptime -ComputerName SERVER-R2 Gets the uptime from SERVER-R2 .EXAMPLE Get-Uptime -ComputerName (Get-Content C:\Temp\Computerlist.txt) Gets the uptime from a list of computers in c:\Temp\Computerlist.txt. .EXAMPLE Get-Uptime -ComputerName SERVER04 -Credential domain\serveradmin Gets the uptime from SERVER04 using alternate credentials. #> Function Get-Uptime { [CmdletBinding()] param ( [Parameter(Position=0, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [Alias("Name")] [string[]]$ComputerName=$env:COMPUTERNAME, $Credential = [System.Management.Automation.PSCredential]::Empty ) begin{} process { foreach ($Computer in $ComputerName) { try { #Need to verify that the hostname is valid in DNS $hostdns = [System.Net.DNS]::GetHostEntry($Computer) $OS = Get-WmiObject -Class win32_operatingsystem -ComputerName $Computer -ErrorAction Stop -Credential $Credential $BootTime = $OS.ConvertToDateTime($OS.LastBootUpTime) $Uptime = $OS.ConvertToDateTime($OS.LocalDateTime) - $boottime $propHash = [ordered]@{ ComputerName = $Computer BootTime = $BootTime Uptime = $Uptime } $objComputerUptime = New-Object PSOBject -Property $propHash $objComputerUptime } catch [Exception] { Write-Output "$computer $($_.Exception.Message)" #return } } } end{} } |