1：在终端下：mysql -V。 以下是代码片段：

　　[shengting@login ~]$ mysql -V
　mysql  Ver 14.14 Distrib 5.5.46, for debian-linux-gnu (x86_64)

2：在mysql中：mysql> status;
　　以下是代码片段：
　　mysql> status;

　　--------------
　　

mysql Ver 14.14 Distrib 5.5.46, for debian-linux-gnu (x86_64) using readline 6.3

Connection id: 4393
Current database:
Current user: root@localhost
SSL: Not in use
Current pager: stdout
Using outfile: ‘‘
Using delimiter: ;
Server version: 5.5.46-0ubuntu0.14.04.2 (Ubuntu)
Protocol version: 10
Connection: Localhost via UNIX socket
Server characterset: latin1
Db characterset: latin1
Client characterset: utf8
Conn. characterset: utf8
UNIX socket: /var/run/mysqld/mysqld.sock
Uptime: 3 days 22 hours 58 min 49 sec

Threads: 1 Questions: 141473 Slow queries: 0 Opens: 81 Flush tables: 1 Open tables: 74 Queries per second avg: 0.413

3：在help里面查找
　　以下是代码片段：
　　[shengting@login ~]$ mysql --help | grep Distrib
　　mysql Ver 14.7 Distrib 4.1.10a, for redhat-linux-gnu (i686)

4：使用mysql的函数
　　以下是代码片段：
　　mysql> select version();
　　+-------------+
　　| version()   |
　　+-------------+
　　| 3.23.56-log |
　　+-------------+
　　1 row in set (0.00 sec)