For those with rails 2 and rails 3 apps

functions

function console() {
  if [[ -x script/console ]]; then
    script/console $*
  else
    bundle exec rails c $*
  fi
}

function listener() {
  if [[ -f Procfile ]]; then
    echo "Starting Foreman"
    bundle exec foreman start
  else
    if [[ -x script/server ]]; then
      echo "Starting Rails 2 listener"
      script/server $*
    else
      echo "Starting Rails 3 listener"
      bundle exec rails s $*
    fi
  fi
}