Ruby gem install sass: Operation not permitted
Are you trying to install sass or other gems and your OS X El Crappytan is giving your troubles?
sudo gem install sass ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin/sass
sudo gem install -n /usr/local/bin sass and that’s fixed.
Of course it works with any other gem that encounter this problem.
Have a good day!