How can I install Jekyll on OSX 10.11?

Question

ERROR:  While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/jekyll

I\'m getting a permission error on trying to install Jekyl

Answer 1

The new El Capitan version of OS X has a new technology called SIP that won't let users (even when using sudo) write to the /usr/bin folder. This breaks the install process. You can disable SIP, but I'd prefer to keep it on since it provides protection against bad stuff.

SIP does allow writing in the /usr/local folder so what I did was manually install ruby there using brew and then install jekyll. That worked fine.

sudo brew install ruby