Mysql Enterprise Backup not working

[DBA Fan]

I have MySQL 5.6 installed on Ubuntu 14.0.4.
I downloaded MySQL Enterprise Backup and tried to take a backup using:

./mysqlbackup --host=172.18.211.85 --port=3306 --protocol=tcp \
> --user=root --password --backup-dir=/home/dba/mysql

I get the following error:

MySQL Enterprise Backup version 3.10.2 Linux-3.2.0-25-generic-x86_64 [2014/06/27]
Copyright (c) 2003, 2014, Oracle and/or its affiliates. All Rights Reserved.

mysqlbackup: INFO: Starting with following command line ...
./mysqlbackup --host=172.18.211.85 --port=3306 --protocol=tcp --user=root
--password --backup-dir=/home/dba/mysql

mysqlbackup: ERROR: Operation command missing.
Use --help option for usage description.


Anyone have any ideas what I'm doing wrong? Thanks.