SSH Login Shell

how to login into a remote host through ssh

1, write a shell script (login.sh), like:

#!/usr/bin/expect -f
set user root
set host 192.168.2.1
set password yourpasswd
set timeout -1

spawn ssh $user@$host
expect "*assword:*"
send "$password\r"
interact
expect eof

2, run the following command in a terminal

#this will run the shell script
expect ./login.sh

3, you can even do this with iTerms2