FYI, as folks have talked about the benefits of being chmod-like, the
Solaris chmod ACL syntax is (ignoring the indexed options):
A- Remove all ACEs, replace with equivalent of file mode
A-${ACLSPEC} Remove ACEs specified by ${ACLSPEC}
A=${ACLSPEC} Replace the entire ACL with ${ACLSPEC}
A+${ACLSPEC} Prepend ACEs specified by ${ACLSPEC} to ACL
--
Carson