Hello, There is an incorrect assertion made in the chmod man page: Under the setuid/setgid header it says, "you can set (but not clear) the bits with a numeric mode" This is not entirely true. If you prefix your numeric mode with a 0 then it will work: e.g. touch myfile chmod 644 myfile ls -l myfile chmod g+s myfile Is -l myfile chmod 00644 myfile is -l myfile This simple test shows that you can clear the uid/gid bits with numeric mode which is especially useful in scripts. An update to the man page to clarify this would be helpful. Thanks, Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html