ADGroupOps

1.0.2

Private/Get-SamAccountNameFromDN.ps1

function Get-SamAccountNameFromDN {
<#
.SYNOPSIS
    Retrieves samAccountName for a user when you already have the DN.
 
.PARAMETER DN
    Distinguished name of the user object.
 
.OUTPUTS
    samAccountName (string) or $null if not found / on error.
#>
    [CmdletBinding()]
    param(
        [Parameter(Mandatory, ValueFromPipeline, Position = 0)]
        [ValidateNotNullOrEmpty()]
        [string]$DN
    )

    process {
        try {
            $user = [ADSI]("LDAP://$DN")
            return $user.Properties["samAccountName"][0]
        }
        catch {
            Write-Warning "Unable to read samAccountName for $DN : $($_.Exception.Message)"
            return $null
        }
    }
}