setfacl - set file access control lists
Usage : setfacl option file
Option
-m modify the current ACL(s) of file(s)
-x remove entries from the ACL(s) of file(s)
-b remove all extended ACL entries
-R recurse into subdirectories
-d operations apply to the default ACL
-k remove the default ACL
--restore=file restore ACLs (inverse of `getfacl -R')