get certificate expiration date powershell

Question

Id like to get your ideas how would you get the remaining days for a certificate to expire.

I need to "monitor" an specific certificate expiration and id like it to notify (email) for 30 days before it expires till its renewed.

I can look for the cert by running:

$cert = "AAAAAAAEEEEEEEFIIIIIIIIIOOOOOOOOUUUUUUUU"
Get-ChildItem -Path cert: -Recurse | where {$_.Thumbprint -eq $cert}

but how could i get the remaining days if is bellow 30.

Any comment or helps is always appreciate it.

Answer 1

Fixitrod gives the right answer. But if somehow you want to know the exactly date that will expire, you can run the following command:

Get-ChildItem -path cert:\LocalMachine\My | Select-Object NotAfter, Subject

Answer 2

get-childitem -path cert: -recurse -Expiringindays 30

Answer 3

Sorry guys, i slightly modified the last command to below so i can get more info and format it in list view

get-childitem -path cert: -recurse -Expiringindays 30 | Select-Object Issuer, NotAfter, Subject, FriendlyName | FL