setfacl Set file access control lists (ACL). Modify ACL of a file for user with read and write access: setfacl -m u:{{username}}:rw {{file}} Modify default ACL of a file for all users: setfacl -d -m u::rw {{file}} Remove ACL of a file for an user: setfacl -x u:{{username}} {{file}} Remove all ACL entries of a file: setfacl -b {{file}}