Ignoring query to other database

 [root@gezi mysql]# bin/mysql -root -pgezi

mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 103863
Server version: 5.7.14-log MySQL Community Server (GPL)
 
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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
 
mysql> 
mysql> show databases;
Ignoring query to other database
mysql> show databases;
Ignoring query to other database
mysql> exit
 
原因: 
连接MySQL时,选项错误,使用了-root,缺少-uroot