#!/bin/bash
export SSH_ASKPASS=/usr/bin/ksshaskpass
/usr/bin/ssh-add  ~/.ssh/id_rsa.2
/usr/bin/ssh-add  ~/.ssh/id_rsa.3

ssh-keygen -t rsa

cat .ssh/id_rsa.pub | ssh USERNAME@IP_ADDRESS 'cat >> .ssh/authorized_keys'
 cat .ssh/id_rsa.pub | ssh USERNAME@IP_ADDRESS 'cat >> .ssh/authorized_keys2'

ssh <USERNAME>@<IP_ADDRESS>