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 >
I installed my ruby2.6.0 and gem via brew on MacOS 10.14. For me, add the following line to my ~/.zshrc solved this issue.
ruby2.6.0
gem
~/.zshrc
export PATH=/usr/local/lib/ruby/gems/2.6.0/bin:$PATH
I found jekyll executable file with command locate jekyll.
locate jekyll