%> ssh-keygen -b 1024 -t RSA
<key in a good passphrase twice>

##</code><code>##

cat .ssh/id_rsa.pub | ssh -l<user> <target_ip> '[ -d .ssh ] || mkdir .ssh ; chmod 700 .ssh ; cat - >> ~/.ssh/authorized_keys'

##</code><code>##

exec /usr/bin/ssh-agent <Window Manager of choice>

##</code><code>##

SSHAGENT=$(which ssh-agent)
SSHAGENTARGS="-s"
if [ -z "$SSH_AUTH_SOCK" -a -x "$SSHAGENT" ]; then
eval `$SSHAGENT $SSHAGENTARGS`
trap "kill $SSH_AGENT_PID" 0
fi
##</code><code>##

%>ssh-add
<key in your passphrase>