I have following commandline: Get-ADUser -filter * -SearchScope Subtree -SearchBase "ou=sub,ou=sub,ou=sub,DC=domain,DC=com" | Get-ADObject -Properties lastlogon | Select-Object Name,lastlogon I do get the lastlogon timestamp, but in unreadable format. The conversion should be something like: [DateTime]::FromFileTime($lastlogon) But how do I implement this on my commandline?

Get-ADUser -filter * -Properties lastlogon -SearchScope Subtree -SearchBase "ou=sub,ou=sub,ou=sub,DC=domain,DC=com" | select Name,@{n='lastlogon';e={[DateTime]::FromFileTime($_.lastlogon)}}

Great!

For future use, could you, in brief, explain following line:

@{n='lastlogon';e={[DateTime]::FromFileTime($_.lastlogon)}}

@{} => I guess this is a scriptblock that needs execution first?

but the:

n='lastlogon';e={}

is hard to understand.

Check this tip:

http://technet.microsoft.com/en-us/library/ff730948.aspx