Which command can you use to display detailed information about the access control of a file?

Using the command to display detailed information about the access control of a file is important for understanding the permissions set on that file, especially in environments where access control lists (ACLs) are used. The command getfacl is specifically designed for this purpose. It retrieves and displays the ACLs associated with a file, providing insight into the permissions granted not only to the owner and group but also to specific users and groups beyond the standard permission settings.

This command goes beyond the typical permission settings that are viewed with commands like ls -l, which only shows the traditional read, write, and execute permissions for the owner, group, and others. While chmod and chgrp are used to change permissions and group ownership respectively, they do not display existing access control details. Therefore, when seeking to understand the comprehensive access settings on a file, getfacl is the most appropriate command to use.