linux mysql詳細使用 摘自beginning linux programming一書

檢測mysl是否啓動：

ps -el|grep mysqld

4 S     0  2176  1995  0  80   0 -   554 rt_sig pts/0    00:00:00 mysqld_safe
4 S   104  2532  2176  0  80   0 - 79297 poll_s pts/0    00:00:00 mysqld

mysqld_safe是一個以正確的id啓動真正的mysqld進程的工具。

 

原文：As with a Linux system, it’s a bad idea to use the root account to log in to MySQL unless it’s absolutely necessary, so you should create an everyday user for normal use.

linux系統不適於用root用戶登錄mysql，所以應當創建一個日常用戶。

原文：the root user is allowed to connect from only the local machine as a security measure.

出於安全考慮，root用戶僅可從本地機器連接mysql。

一. Grant方法：

原文：You create users and assign them privileges by using the grant command.

使用grant方法創建用戶、賦予用戶權限。

1. Create a local login for rick

示例：grant all on *.* to rick@localhost identified by '123456';

2. create a login from anywhere on the class C subnet of 192.168.0. Notice that you must use
single quotes to protect the IP range, and use a mask /255.255.255.0 to identify the range of
IP addresses that are allowed

示例：GRANT ALL ON *.* TO rick@‘192.168.0.0/255.255.255.0’ IDENTIFIED BY ‘secretpassword’;

3. Finally, create a login so that rick can log on from any machine in the wiley.com domain
(again notice the single quotes)

示例：GRANT ALL ON *.* TO rick@‘%.wiley.com’ IDENTIFIED BY ‘secretpassword’;