Powershell Check Cert Expiry Days

Get-CertificateExpirations.ps1

#requires -Version 3
<#
	.SYNOPSIS
	Search Servers for a certificate and show expiry date
	.EXAMPLE
	Get-CertificateExpirations.ps1 -Servers @("serverA.local","serverB.local") -CertName test.com.au
#>

param(
	[Parameter(Mandatory=$true,HelpMessage='Certificate Name')][string]$CertName,
	[array]$Servers=@(
		'server1.local',
		'server2.local'
	)
)

$command = { param([Parameter(Mandatory=$true)]$cert) Get-ChildItem -Path cert:\localmachine\my | Where-Object {$_.Subject -like "*=$cert*"} | Select-Object -Property subject,notafter }

foreach ($s in $Servers) {
	Write-Verbose -Message "running check on $s"
	Invoke-Command -ComputerName $s -ScriptBlock $command -ArgumentList $CertName
}