MySQL中的mysqlshow

mysqlshow语法：
mysqlshow [options][db_name [table_name [column_name]]]
使用mysqlshow,无参数
(相当于show databases)
D:\snx_workspace3.7\persistence-part>mysqlshow -hlocalhost -uroot -proot
+--------------------+
|     Databases      |
+--------------------+
| information_schema |
| job                |
| mysql              |
| test               |
| world              |
+--------------------+
使用mysqlshow,用一个参数
(相当于show tables from world)
D:\snx_workspace3.7\persistence-part>mysqlshow -hlocalhost -uroot -proot world
Database: world
+-----------------+
|     Tables      |
+-----------------+
| allergy         |
| auth_info       |
| booleans        |
| booleans2       |
| city            |
| country         |
| countrylanguage |
| dup_names       |
| t               |
| t1              |
| t2              |
| t3              |
| t4              |
| t5              |
| t6              |
| ts_test1        |
| ts_test2        |
| ts_test3        |
| ts_test4        |
| ts_test5        |
| ts_test6        |
| ty              |
| unique_names    |
+-----------------+
使用mysqlshow,用二个参数
(相当于show full columns from world.t)
D:\snx_workspace3.7\persistence-part>mysqlshow -hlocalhost -uroot -proot world t
Database: world  Table: t
+-------+------------------+-----------------+------+-----+------------+-------+---------------------------------+----
| Field | Type             | Collation       | Null | Key | Default    | Extra | Privileges                      | Com
+-------+------------------+-----------------+------+-----+------------+-------+---------------------------------+----
| i     | int(10) unsigned |                 | NO   |     |            |       | select,insert,update,references |
| c     | char(10)         | utf8_general_ci | YES  |     |            |       | select,insert,update,references |
| d     | date             |                 | YES  |     | 1999-12-31 |       | select,insert,update,references |
+-------+------------------+-----------------+------+-----+------------+-------+---------------------------------+----

使用mysqlshow,用三个参数
(相当于show full columns from world.t like 'c')
D:\snx_workspace3.7\persistence-part>mysqlshow -hlocalhost -uroot -proot world t c
Database: world  Table: t  Wildcard: c
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
| Field | Type     | Collation       | Null | Key | Default | Extra | Privileges                      | Comment |
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
| c     | char(10) | utf8_general_ci | YES  |     |         |       | select,insert,update,references |         |
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
支持模糊查询
D:\snx_workspace3.7\persistence-part>mysqlshow -hlocalhost -uroot -proot world  t*
Database: world  Wildcard: t%
+----------+
|  Tables  |
+----------+
| t        |
| t1       |
| t2       |
| t3       |
| t4       |
| t5       |
| t6       |
| ts_test1 |
| ts_test2 |
| ts_test3 |
| ts_test4 |
| ts_test5 |
| ts_test6 |
| ty       |
+----------+