linux备份和mysql登陆自动输入密码

1.mysql自动登陆，系统自己输入密码

(1)安装亿需要的软件

[root@db2 ~]# yum install expect-*

(2)在脚本中写入命令

#!/usr/bin/expect -f             --使用expect软件
set timeout 2                   --输出密码时延时2秒
spawn mysql -u root -p           --mysql登陆命令
expect "system"               --mysql的密码
send "system\n"                 --mysql的密码
interact                           --进入mysql

(3)测试

[root@db2 ~]# ./1.sh
spawn mysql -u root -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 23
Server version: 5.1.47-log Source distribution

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

2.远程登陆