Quels sont les attributs ACL disponibles dans Mac OS 10.13 High Sierra ?

Une liste complète des attributs de l'ACL est disponible dans les pages de manuel :

man chmod

Si vous préférez une application GUI pour afficher les pages de manuel, téléchargez et installez par exemple ManOpen (gratuit) ou Dash pour MacOS (quelques $$).

Je ne vais pas énumérer toute la documentation de chmod :

...

ACL MANIPULATION OPTIONS

 ACLs are manipulated using extensions to the symbolic mode grammar.  Each
 file has one ACL, containing an ordered list of entries.  Each entry
 refers to a user or group, and grants or denies a set of permissions.  In
 cases where a user and a group exist with the same name, the user/group
 name can be prefixed with "user:" or "group:" in order to specify the
 type of name.

 If the user or group name contains spaces you can use ':' as the delim-
 iter between name and permission.

 The following permissions are applicable to all filesystem objects:
       delete  Delete the item.  Deletion may be granted by either this
               permission on an object or the delete_child right on the
               containing directory.
       readattr
               Read an objects basic attributes.  This is implicitly
               granted if the object can be looked up and not explicitly
               denied.
       writeattr
               Write an object's basic attributes.
       ...