problème lors de l'installation de Google Cloud SDK sur OSX 10.9.1

Peu un newbie ici, im essayant d'installer GC SDK suivant les instructions ici

https://developers.google.com/compute/docs/gcutil/

Do you want to update your system path to include the Google Cloud SDK
 (Y/n)?  y

Enter path to a file to append the PATH update to, or leave blank to 
use /Users/lawrencetaur/.bash_profile:  

Do you want to enable command-line completion? (Y/n)?  y

Traceback (most recent call last):
  File "/Users/lawrencetaur/google-cloud-sdk/bin/bootstrapping/install.py", line 293, in     <module>
    bin_path=bootstrapping.BIN_DIR,
  File "/Users/lawrencetaur/google-cloud-sdk/bin/bootstrapping/install.py", line 213, in     UpdatePath
    with open(rc_path, 'w') as rc_file:
IOError: [Errno 13] Permission denied: '/Users/lawrencetaur/.bash_profile'

Tout ce que je veux est de l'utiliser comme une debian instance https://developers.google.com/compute/docs/quickstart#servewebpages

OriginalL'auteur Lawrence Taur | 2014-01-20