**To retrieve a list of the OUs in a parent OU or root** The following example shows you how to get a list of OUs in a specified root: :: aws organizations list-organizational-units-for-parent --parent-id r-examplerootid111 The output shows that the specified root contains two OUs and shows details of each: :: { "OrganizationalUnits": [ { "Name": "AccountingDepartment", "Arn": "arn:aws:organizations::o-exampleorgid:ou/r-examplerootid111/ou-examplerootid111-exampleouid111" }, { "Name": "ProductionDepartment", "Arn": "arn:aws:organizations::o-exampleorgid:ou/r-examplerootid111/ou-examplerootid111-exampleouid222" } ] }