gtk-acl is a GTK frontend that allow users to manage ACL permissions. ACL is a new kind of access that overrides Unix permissions to support more fine-grained permissions. You can add more users or groups to file or directory permissions.
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This release can manage access and default ACLs (for directories). It also works on filesystems without ACL support (it will edit Unix permissions only). A French introduction has been added, and there are some bugfixes.