Access Control Lists (ACLs)

ACLs (pronounced “ackkls”) can provide greater control over file permissions when the traditional UNIX file protection in the SunOS operating system is not sufficient. The traditional UNIX file protection provides read, write, and execute permissions for the three user classes: owner, group, and other. An ACL provides better file security by enabling you to define file permissions for the owner, owner's group, others, specific users and groups, and to define default permissions for each of those categories. For step–by–step instructions on using ACLs, see Using Access Control Lists (ACLs).

The following table lists the commands for administering ACLs on files or directories.