MySQL学习之——利用MySQL判断操作系统版本

其实很简单,利用MySQL在windows下面是大小写不敏感而在Linux下面大小写敏感的特性来判断。

在windows下执行:

mysql> create database webSec;
Query OK, 1 row affected (0.01 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
| websec             |
+--------------------+
5 rows in set (0.00 sec)

mysql> create database websec;
ERROR 1007 (HY000): Can't create database 'websec'; database exists

可以看出,在windows下是大小写不敏感的。

在Linux下执行:

mysql> create database websec;
Query OK, 1 row affected (0.01 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| websec             |
+--------------------+
4 rows in set (0.00 sec)

mysql> create database Websec;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| Websec             |
| mysql              |
| performance_schema |
| websec             |
+--------------------+
5 rows in set (0.01 sec)

发现对大小写敏感。

通过这个手段就可以判断目标操作系统。当然,其实还有更简单的方式:

mysql> select @@version_compile_os;
+----------------------+
| @@version_compile_os |
+----------------------+
| Win64                |
+----------------------+
1 row in set (0.00 sec)
mysql> select @@version_compile_os;
+----------------------+
| @@version_compile_os |
+----------------------+
| debian-linux-gnu     |
+----------------------+
1 row in set (0.38 sec)

 

转载于:https://www.cnblogs.com/websec/p/5542621.html

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