用expect免密码进入MySQL命令模式
2013-01-15 15:46:45 来源:WEB开发网一般情况下,我们想要进入MySQL命令模式总是需要按如下交互输入密码确认,才能进入命令行模式:
zhanhailiang@linux-06bq:~> mysql -u sl -p
Enter password:
其实我们完全可以使用expect编写脚本,来通来expect与shell交互通信来实现免密码登录:
zhanhailiang@linux-06bq:~> cat mysql.sh
#!/usr/local/bin/expect
spawn /usr/local/services/mysql/bin/mysql -u sl -p
expect {
"assword" { send "sl\r" }
}
interact
其实这段脚本的意思就是说“执行/usr/local/services/mysql/bin/mysql -u sl -p,等待响应,若匹配assword,则发送sl(即MySQL用户登录密码),回车,模拟用户手工操作”。
编写完mysql.sh脚本后,赋予执权限,然后就可以通过执行mysql.sh来免密码进入MySQL命令行模式。
zhanhailiang@linux-06bq:~> chmod +x mysql.sh
zhanhailiang@linux-06bq:~> ./mysql.sh
spawn /usr/local/services/mysql/bin/mysql -u sl -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12912
Server version: 5.5.14-log MySQL Community Server (GPL)
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
注:expect拥有众多的参数及丰富的应用场景,有兴趣的同学请自行查看man手册或其它资料。
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