#!/bin/sh

me=$USER

if [ "$#" -lt 2 ] 
then
    echo "Usage: $0 [user] [host] "
    exit
fi

user=$1
host=$2

#check if id_rsa.pub exists

if [ ! -f "$HOME/.ssh/id_rsa.pub" ] 
then
    echo Public key not exists, create it...
    ssh-keygen -t rsa
fi


scp $HOME/.ssh/id_rsa.pub $user@$host:/home/$user/
ssh $user@$host "cat /home/$user/id_rsa.pub >> /home/$user/.ssh/authorized_keys; rm /home/$user/id_rsa.pub; chmod 644 /home/$user/.ssh/authorized_keys;"
ssh $user@$host "echo If you see this message without enter password, congratulations!"