7.6. expect-白红宇

$ sudo apt-get install expect

命令含义

#!/usr/bin/expectset timeout 30spawn ssh root@192.168.1.1expect "password:"send "mypassword\r"interact

set 设置变量

spawn 执行命令

expect 检测点

send 发送指令

7.6.1. 模拟登录 telnet 获取Cisco配置

例 7.1. example for expect

cat tech-support.exp#!/usr/bin/expectset timeout 30spawn telnet 172.16.1.24expect "Password: "send "chen\r"expect "*>"send "enable\r"expect "Password: "send "chen\r"expect "*#"send "sh tech-support\r"send "!\r"expect "*-Switch#"send "exit\r"expect eofexit

3层设备

cisco.exp#!/usr/bin/expectset ip [lindex $argv 0]set username [lindex $argv 1]set password [lindex $argv 2]log_file $ip.logspawn telnet $ipexpect "Username:"send "$username\r"expect "Password:"send "$password\r"expect "#"send "show running-config\r"send "exit\r"expect eof

2层设备

$ cat config.exp#!/usr/bin/expectset timeout 30set host [lindex $argv 0]set password [lindex $argv 1]set done 0log_file $host.logspawn telnet $hostexpect "Password:"send "$password\r"expect "*>"send "enable\r"expect "Password: "send "$password\r"expect "*#"send "show running-config\r"while {$done == 0} {expect {" --More--" { send -- " " }"*#" { set done 1 }eof { set done 1 }}}send "\r"expect "*#"send "exit\r"expect eofexit$ cat loop.sh#! /bin/shwhile read swdo	./config.exp $swdone <

7.6.2. 模拟登录 ssh

例 7.2. example for expect

#!/usr/bin/expectset timeout 30spawn ssh root@192.168.1.1expect "password:"send "mypassword\r"interact

例 7.3. example 1

#!/usr/bin/expect　　set password 1234  #密码　　#download　　spawn scp /www/* root@172.16.1.2:/www/　　set timeout 300　　expect "172.16.1.2's password:"　　set timeout 3000　　#exec sleep 1　　send "$password\r"　　set timeout 300　　send "exit\r"　　#expect eof　　interact　　spawn scp /www/* root@172.16.1.3:/www/　　set timeout 300　　expect "root@172.16.1.3's password:"　　set timeout 3000　　#exec sleep 1　　send "$password\r"　　set timeout 300　　send "exit\r"　　interact

例 7.4. *.exp

$ expect autossh.exp neo@192.168.3.10 chen "ls /"

autossh.exp

#!/usr/bin/expect -fset ipaddress [lindex $argv 0]set ipaddress [lindex $argv 0]set passwd [lindex $argv 1]set command [lindex $argv 2]set timeout 30spawn ssh $ipaddressexpect {    "yes/no" { send "yes\r";exp_continue }    "password:" { send "$passwd\r" }}expect ""send "$command \r"send "exit\r"expect eofexit

批量执行

password.lst192.168.0.1 passwd192.168.0.2 passwd192.168.0.3 passwd

#!/bin/bashcat password.lst | while read linedo	host=$(echo $line|awk '{print $1}')	passwd=$(echo $line|awk '{print $2}')	expect autossh.exp $host $passwd	sleep 2done

7.6.3. SCP

#! /usr/bin/expect -fspawn scp 1 neo@192.168.0.1:expect "*password:"send "your password\r"expect eof

#!/bin/expectspawn scp x.x.x.xfor {} {1} {} {	expect {		"password:" {	        send "YourPassWord"	    }	}}

spawn scp 1 neo@172.16.0.1:for { set i 1 } {$i<5} {incr i} {	expect {		"*password:" {send "koven\r"}		"*(yes/no)*" {send "yes\r"}	}}

原文出处：Netkiller 系列手札

本文作者：陈景峯

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