#!/usr/bin/expect
set timeout 30
spawn ssh -p [lindex $argv 0] [lindex $argv 1]@[lindex $argv 2]
expect {
"(yes/no)?"
{send "yes\n";exp_continue}
"password:"
{send "[lindex $argv 3]\n"}
}
interact
原文：http://my.oschina.net/vernon/blog/364120