MySQL自动备份与数据库被破坏后的恢复方法第1/2页_MySQL

#!/bin/bash

PATH=/usr/local/sbin:/usr/bin:/bin

# The Directory of Backup
BACKDIR=/backup/mysql

# The Password of MySQL
ROOTPASS=********　 此处请将星号替换成MySQL的root密码

# Remake the Directory of Backup
rm -rf $BACKDIR
mkdir -p $BACKDIR

# Get the Name of Database
DBLIST=`ls -p /var/lib/mysql | grep / | tr -d /`

# Backup with Database
for dbname in $DBLIST
do
mysqlhotcopy $dbname -u root -p $ROOTPASS $BACKDIR | logger -t mysqlhotcopy
done

Type 'help;' or '/h' for help. Type '/c' to clear the buffer.

mysql> create database test;　 ← 建立一个测试用的数据库test
Query OK, 1 row affected (0.00 sec)

mysql> use test　 ← 连接到这个数据库
Database changed

mysql> create table test(num int, name varchar(50));　 ← 在数据库中建立一个表
Query OK, 0 rows affected (0.07 sec)

mysql> insert into test values(1,'Hello,CentOS');　 ← 插入一个值到这个表（这里以“Hello,CentOS”为例）
Query OK, 1 row affected (0.02 sec)

mysql> select * from test;　 ← 查看数据库中的内容
+------+-----------------+
| num | name |
+------+-----------------+
|1　 | Hello,Centos |　 ← 确认刚刚插入到表中的值的存在
+------+------------------+
1 row in set (0.01 sec)

mysql> exit　 ← 退出MySQL服务器
Bye

Type 'help;' or '/h' for help. Type '/c' to clear the buffer.

mysql> use test　 ← 连接到测试用的test数据库
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> drop table test;　 ← 删除数据中的表
Query OK, 0 rows affected (0.04 sec)

mysql> drop database test;　 ← 删除测试用数据库test
Query OK, 0 rows affected (0.01 sec)

mysql> show databases;
+---------------+
| Database |
+---------------+
| mysql |　 ← 确认测试用的test数据库已不存在、已被删除
+---------------+
1 row in set (0.01 sec)

mysql> exit　 ← 退出MySQL服务器
Bye

Type 'help;' or '/h' for help. Type '/c' to clear the buffer.

mysql> show databases;　 ← 查看当前存在的数据库
+-------------+
| Database |
+-------------+
| mysql |
| test　 |　 ← 确认刚刚被删除的test数据库已经成功被恢复回来！
+------------+
2 rows in set (0.00 sec)

mysql> use test　 ← 连接到test数据库
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> show tables;　 ← 查看test数据库中存在的表
+-------------------+
| Tables_in_test |
+-------------------+
| test 　|
+-------------------+
1 row in set (0.00 sec)

mysql> select * from test;　 ← 查看数据库中的内容
+------+---------------------+
| num | name　 |
+------+---------------------+
| 1 | Hello,CentOS |　 ← 确认数据表中的内容与删除前定义的“Hello,CentOS”一样！
+------+---------------------+
1 row in set (0.01 sec)

mysql> exit　 ← 退出MySQL服务器
Bye