public/Get-ReverseDistinguishedName.ps1
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function Get-ReverseDistinguishedName { <# .SYNOPSIS Reverse an LDAP DistinguishedName into ADSI form .DESCRIPTION Reverse an LDAP DistinguishedName value into ADSI form so that it reads left-to-right Domain,Path,Name without the prefix keys (e.g. "OU=") .PARAMETER DistinguishedName LDAP DistinguishedName value .PARAMETER PathOnly Optional. Returns domain root and path without the object name (CN= value) .EXAMPLE Get-ReverseDistinguishedName "CN=TaylorS,OU=Users,OU=Sales,OU=CORP,DC=East,DC=Contoso,DC=local" Returns: "East.Contoso.local\CORP\Sales\UsersTaylorS" .EXAMPLE Get-ReverseDistinguishedName -PathOnly "CN=TaylorS,OU=Users,OU=Sales,OU=CORP,DC=East,DC=Contoso,DC=local" Returns: "East.Contoso.local\CORP\Sales" .LINK https://github.com/Skatterbrainz/helium/blob/master/docs/Get-ReverseDistinguishedName.md #> param ( [parameter(Mandatory=$True,HelpMessage="LDAP DistinguishedName")] [string][ValidateNotNullOrEmpty()]$DistinguishedName, [parameter()][switch]$PathOnly ) $parts = $DistinguishedName -split ',' $base = $parts | Where-Object {$_.StartsWith('DC=')} | Foreach-Object {$_ -replace 'DC=',''} $name = $parts | Where-Object {$_.StartsWith('CN=')} | Foreach-Object {$_ -replace 'CN=',''} $path = $parts | Where-Object {$_.StartsWith('OU=')} | Foreach-Object {$_ -replace 'OU=',''} if ($base) { $base = $base -join '.' } if ($path) { [array]::Reverse($path); $path = $path -join '\' } $result = "$($base)\$($path)" if (!$PathOnly) { $result += "$($name)" } return $result } |