facl is an interactive editor for NFSv4 access control lists, modelled
after the Windows "Advanced Security Settings" dialog: one row per ACL
entry, an entry editor with "Applies to" (this folder, subfolders and
files, ...), basic and advanced permissions, and apply scopes that
propagate or replace the inherited entries of a whole tree. Changes are
previewed as the exact setfacl(1) commands before they run.
It reads ACLs with getfacl(1) and writes them with setfacl(1), and works
on ZFS, UFS with nfsv4acls and NFSv4 mounts. On ZFS the dataset's
aclinherit and aclmode properties are honoured when computing what
descendants inherit and what chmod(1) would do to an ACL. It also shows
the effective access of a user or group, audits a tree for inheritance
drift, changes ownership, keeps ACL templates, and offers all of that
non-interactively for scripts (dry run, -set, -audit, -effective, ...).
