[charles2013]

whilst reading your above comment i wondered why you chose not to use environment variables instead. e.g.:

  $ export cdc_stuff='/Users/me/src/project_stuff'
  $ cd $cdc_stuff

however, now it's clear.

in the event you're looking for alternatives, perhaps porting your code to (e.g.) ruby could work.

just in case, here's the isbn number of a book called, 'Build Awesome Command-Line Applications in Ruby 2,' from the pragmatic bookshelf: 978-1-93778-575-8