Use Expect to Automatize Telnet

#!/usr/bin/expect

##############################################

# #sf.exp: an expect script used to execute a

# command on remote handset.

# #Usage: se.exp [ipaddr] [command]

##############################################

set timeout 100000

set TERM xterm

set ipaddr [lindex $argv 0]

set command [lindex $argv 1]

 

spawn telnet $ipaddr

expect "(none) login:"

send "root\r"

 

expect "#"

send "$command\r"

 

expect "#"

send "exit\r"