Before you can change an ACL, you must get the current one. There are two ways to do this with PowerShell. Learn how to get the current ACL and modify it.

A few weeks ago, I answered a reader question about “inherited permissions,” or how to deal with a shared folder that multiple people use via file serving on a regular Mac, not one running macOS ...

Since Mac OS X was released, we've covered numerous issues where incorrect or corrupt permissions have caused problems. Many issues are minor, such as a file that can't be deleted, or an application ...

There are a variety of maintenance routines that people can run in OS X, including the disk verification and permissions repair that come with the system, along with scripts such as cache cleaners ...