自动备份cisco交换机配置文件（1）

原理是采用tcl expect方式自动备份文件到tftp服务器(采用atftp,tftp-hpa都可）
脚本如下
cat backsw-.1.2.exp

#!/usr/bin/expect -f

#file name: baksw.exp
#Usages: auto backup switch configure
#Version: v1.2
#By Create Edward.zhou
#Date: 2012-07-14

set timeout -1

if { $argc !=4 } {
puts "Usage $argv0 passwd enablepasswd switchhost tftpserver"
exit 1
}

set passwd [lindex $argv 0]
set enapwd [lindex $argv 1]
set swhost [lindex $argv 2]
set tftpsr [lindex $argv 3]
spawn telnet $swhost
expect "Password:"
send "$passwd\r"
expect "*>"
send "enable\r"
expect "Password:"
send "$enapwd\r"
expect "*#"
send "copy startup-config tftp:\r"
expect "*]?"
send "$tftpsr\r"
expect "*]?"
send "\r"
send "exit\r"
interact

使用方式：  backsw-1.2.exp *** *** 10.1.11.1 10.1.10.8
缺点： 只能单独备份一台设备