I am trying to get Jekyll running but I have no experience with Ruby. As far as I can tell the installation of Jekyll has succeeded. However:
$ jekyll >
One solution would be editing your ~/.bashrc file and add this line:
~/.bashrc
PATH=$PATH:~/.gem/ruby/1.8/gems/bin
This will add ~/.gem/ruby/1.8/gems/bin in Bash's lookup path.
~/.gem/ruby/1.8/gems/bin
Reopen the terminal and it should work. Or you can use the following command:
. ~/.bashrc