local _atom_paths > /dev/null 2>&1
  _atom_paths=(
      "$HOME/Applications/Atom.app"
      "/Applications/Atom.app"
  )
  
  for _atom_path in $_atom_paths; do
      if [[ -a $_atom_path ]]; then
          alias at="open -a '$_atom_path'"
          break
      fi
  done
  
  alias att='at .'