Script to backup Cisco Device Config

A handy expect script on Linux to backup your routers, switches, AP, or other IOS devices configuration.  Make sure you have “expect” installed on your Linux box.

#!/usr/bin/expect

set timeout 5
log_user 1

# Include your hosts in the hostlist
set hostlist "rt01 rt02 sw01 sw02"
foreach host $hostlist {
set prompt [append $host "#"]
spawn telnet $host
expect $prompt
send "term len 0\r"
expect $prompt
set time [exec date \+\%y\%m\%dT\%H\%MJ]
set filename [append host "-" $time]

# The config file storage location
log_file /home/pandaeatsbamboo/cfgbackup/$filename
send "show run\r"
expect $prompt
send "exit\r"
log_file
}