#!/usr/bin/expect
set timeout 5
log_user 0
set username [lindex $argv 0]
set password [lindex $argv 1]

puts "Setting password for user '$username' to '$password'"

spawn passwd $username
sleep 1
expect "password: "
send "$password\r\n"
sleep 1
expect "password: "
send "$password\r\n"
expect eof