expect简单自动交互-用于密码、命令输入

1. 安装expect

#yum -y install expect

2. 新建.exp文件，用于ssh交换机

#vi exp.exp

#!/bin/expect

set f [open ipfile.txt]

while {} {

        set line [gets $f]

        if {[eof $f]} {

                close $f

                break

        }

        set timeout

        spawn ssh -l user $line

        expect {

                "(yes/no)?" { send "yes\r"; exp_continue }

                "Enter password:" { send "pwd\r"; exp_continue }

                "Password:" { send "pwd\r"; exp_continue }

                "user@$line's password:" { send "pwd\r"; exp_continue }

                "#" { send "exit\r"}

                ">" { send "quit\r"}

        }

        interact

}

3. 交换机IP地址存入ipfile.txt

#vi ipfile.txt

192.168.1.1

192.168.1.2

192.168.1.3

192.168.1.4

4. 执行

#expect exp.exp