Add this snippet to you bash profile to give you the power of beer.

beer.sh

ROOT_PROJECT_DIR=$HOME/projects/

proot() {
  echo $(echo $PWD | sed "s|\($ROOT_PROJECT_DIR[A-Za-z]*\).*|\1|")
}

beer() {
  spec=$1
  shift
  cd $(proot); bundle exec rspec ./spec/$spec $@
}

_beer_completion() {
  COMPREPLY=($(compgen -W "$(cd $(proot); find ./spec -type f | sed 's|./spec/||')" ${COMP_WORDS[COMP_CWORD]}))
}

complete -F _beer_completion beer

That is a short hand for bundle exec rspec with auto complete scoped to $project_root/specs. It can be run within any folder of the current project. ie while in $project_root/app/controllers, running beer controllers/tracker2/activities_controller_spec.rb is the equivalent of cd $project_root; bundle exec rspec specs/controllers/tracker2/activities_controller_spec.rb