ssh_gen_key.sh

$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/jurn/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/jurn/.ssh/id_rsa
Your public key has been saved in /home/jurn/.ssh/id_rsa.pub
$ cd ~/.ssh
$ cat id_rsa.pub >> authorized_keys
$ chmod 600 authorized_keys