echo -n starting ssh-agent ...
[[ -z `pgrep ssh-agent` ]] && ssh-agent > $HOME/.ssh/environment && echo done || echo already
chmod 600 $HOME/.ssh/environment

echo -n sourcing $HOME/.ssh/environment ...
source $HOME/.ssh/environment | grep -v ^Agent && echo done

echo -n unlocking privkey ...
[[ -z `ssh-add -l` ]] && ssh-add && echo done || echo already

echo currently loaded keys:
ssh-add -l