Access Control Lists (ACLs) in Linux allow for more granular control over file permissions by enabling assignment to multiple users or groups, beyond just the file owner and one group.
Traditional permissions with chmod and chown are limited in providing access to multiple users or different groups on the same file, which is where ACLs excel.
ACLs are useful when sharing files among many users, when standard permissions are insufficient, or in team/project folders with varying roles.
Basic ACL commands like getfacl and setfacl enable checking, setting, and managing permissions for users and groups on files or directories in Linux.