Clarifying recursive delete permissions

Author: normesta

articles/storage/blobs/data-lake-storage-access-control.md

@@ -6,7 +6,7 @@ author: normesta
 
 ms.service: azure-data-lake-storage
 ms.topic: conceptual
-ms.date: 08/30/2023
+ms.date: 04/24/2024
 ms.author: normesta
 ms.reviewer: jamesbak
 ms.devlang: python
@@ -102,13 +102,28 @@ This table shows a column that represents each level of a fictitious directory h
 | Read Data.txt            |   `--X`   |   `--X`    |  `--X`      | `R--`          |
 | Append to Data.txt       |   `--X`   |   `--X`    |  `--X`      | `RW-`          |
 | Delete Data.txt          |   `--X`   |   `--X`    |  `-WX`      | `---`          |
+| Delete /Oregon/          |   `-WX`   |   `RWX`    |  `RWX`      | `RWX`          |
+| Delete /Oregon/Portland/ |   `--X`   |   `-WX`    |  `RWX`      | `RWX`          |
 | Create Data.txt          |   `--X`   |   `--X`    |  `-WX`      | `---`          |
 | List /                   |   `R-X`   |   `---`    |  `---`      | `---`          |
 | List /Oregon/           |   `--X`   |   `R-X`    |  `---`      | `---`          |
 | List /Oregon/Portland/  |   `--X`   |   `--X`    |  `R-X`      | `---`          |
 
+### Deleting directories
+
+To delete a directory and all of its contents, the parent directory must have Write + Execute permissions. The directory to be deleted, and every directory within it, requires Read + Write + Execute permissions.
+
+### Which permissions are required to recursively delete a directory and its contents?
+
+- The caller has 'super-user' permissions,
+
+Or
+
+- The parent directory must have Write + Execute permissions.
+- The directory to be deleted, and every directory within it, requires Read + Write + Execute permissions.
+
 > [!NOTE]
-> Write permissions on the file are not required to delete it, so long as the previous two conditions are true.
+> You do not need Write permissions to delete files in directories. Also, the root directory "/" can never be deleted.
 
 ## Users and identities