apt-get install ruby rubygems # default install is to: # - /var/lib/gems/1.8 # another good choice is # - /home/$USER/.gem/ruby/1.8 # install in specific dir gem install --install-dir ~/.gem/ruby/1.8
Add the install-dir to $PATH or start jekyll from where it is installed (here it is in /.gem/ruby/1.8/bin).