Functions/Public/Get-PCUpTime.ps1
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#!/usr/bin/env pwsh <# .SYNOPSIS Get the amount of time since the last boot-up sequence for a computer. .DESCRIPTION This cmdlet uses Get-CimInstance to gather the .LastBootUpTime for the local or remote computer. PowerShell 7 comes with a `Get-Uptime` cmdlet, so if called from PowerShell, it will simply call or invoke that cmdlet. otherwise when called from Windows Powershell, it will invoke a CimInstance. .PARAMETER ComputerName Specify the remote computer to query using CIM. .EXAMPLE PS> Get-PCUpTime Description ----------- This will return the current UpTime value for the local computer. .EXAMPLE PS> Get-PCUpTime Remote-Server Description ----------- This will query `Remote-Server` for it's uptime data. .NOTES Author: Matthew J. DeGarmo Handle: @matthewjdegarmo #> function Get-PCUpTime() { [CmdletBinding()] param( [Parameter(ValueFromPipeline)] $ComputerName ) begin { $Version = $PSVersionTable.PSEdition } process { try { switch($Version) { 'Desktop' { if ($null -ne $ComputerName) { $SplatMe = @{ ClassName = 'Win32_OperatingSystem' ComputerName = $ComputerName} } else { $SplatMe = @{ ClassName = 'Win32_OperatingSystem' } } $Now = Get-Date $LastBootUpTime = (Get-CimInstance @SplatMe).LastBootUpTime $Return = $Now - $LastBootUpTime | Select-Object Days,Hours,Minutes,Seconds,@{Name='Date';Expression={$LastBootUpTime}} return $Return } 'Core' { if ($null -ne $ComputerName) { $params = @{ ComputerName = $ComputerName ScriptBlock = {Get-Uptime} } Invoke-Command @params } else { Get-Uptime } } DEFAULT {} } } catch { Write-Error "$($_.Exception.Message)" } } } |