Installing Ruby was easy. It didn't install the gem package manager so I needed to add it separately. Save yourself some time and run (as root):
apt-get install ruby rubygems
This also adds the gem installer.
gem install jekyll
Now, all the docs related to Jekyll say run:
And everything will be great. However, on Debian, it can't find the program.
Gems seem to not install in (or near) your $PATH. You have to add
/var/lib/gems/X.Y/bin(in my case X.Y == 1.8, replace with what ever version you installed) to your $PATH. The best place is
/etc/profileso all users get it. You can also symbolic link it to you ~/bin directory since that's in your path too.
Regardless, the Internet didn't give the answer - I finally found it in a bug report as a bothersome install location. It was closed as expected behavior (I still find it bothersome).
So Internet, do your magic and find my post so someone's life might be a little bit easier...