Article Series

Jekyll in General

Jekyll Plain

Where to Discuss?

Local Group


Goal: Time to embrace the CLI webtools

Installing Jekyll should be easy and straight away, until have to deal with different version of Jekyll, so you have to use bundle. Or worst, you might need diferrent ruby at once. This can be managed using RVM


I won’t go much further with typical installment, as it is already covered well in official documentation.

Why Another Tutorial?

You can skip this article.

I suggest you have a fast reading for this RVM article, before you dive in to this long jekyll article series. Using RVM is more like a choice, and this article below is more like an overview, so you can use different Jekyll at once in your system.

I utilize screenshot so I can help people. For each step, bundle or RVM, I can give screenshot. So the people get the idea, of what to expect, when issuing command on terminal shell.

If you think, that you do not currently require RVM, you can skip this article, and go straight to Jekyll configuration, in the next article.

Official Documentation

The complete guidance in official site is in this link below: Beginner can use this method, and just run Jekyll.

Windows Users

Windows folks can also install Jekyll.

It is basically a guidance to use rubyinstaller.

Checking version

You can check by running this command.

$ jekyll -v
jekyll 4.1.1

$ gem -v

$ ruby -v
ruby 2.4.4p296 (2018-03-28 revision 63013) [x86_64-linux]

$ rvm -v
rvm 1.29.4 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin []

Jekyll Install: Checking Version


You can use any jekyll version that you want. Now here is the issue, github only use jekyll 3.8.7 version.

The Jekyll version is locked. So you must adapt your localhost.


Jekyll, Gemfile, Bundle, RVM, Ruby?

Jekyll dependencies managed in Gemfile by bundle. This way, you can choose which version of Jekyll that you need. This bundle lock the jekyll version, along with all of its dependencies.

Bundle vs RVM

Each project has different package dependency.

With bundle you can choose between package, for example

  1. Jekyll 3.8.7, or

  2. Jekyll 4.1.1

While with RVM you can choose between ruby, for example

  1. Ruby 2.4.9, or

  2. Ruby 2.6.5

Gem Install Bundler

You need to install bundler first.

$ gem install bundler
Fetching: bundler-2.1.4.gem (100%)
Successfully installed bundler-2.1.4
Parsing documentation for bundler-2.1.4
Installing ri documentation for bundler-2.1.4
Done installing documentation for bundler after 10 seconds
1 gem installed

Jekyll Install: gem install bundler


Gemfile is not mandatory in github pages

A typical Jekyll Gemfilewould looks like this.

source ""
gem "jekyll", "~> 4.1.1"

gem "minima", "~> 2.0"

group :jekyll_plugins do
  gem "jekyll-paginate"

Jekyll Install: Bundle: Gemfile

You can run Jekyll without Gemfile by manually install dependency.

Bundle Install

Before running Jekyll, You should run bundle install. This will process the Gemfile above.

$ bundle install
Using public_suffix 4.0.5
Using addressable 2.7.0
Using bundler 2.0.1
Using colorator 1.1.0
Using concurrent-ruby 1.1.6
Using eventmachine 1.2.7
Using http_parser.rb 0.6.0
Using em-websocket 0.5.1
Using ffi 1.13.1
Using forwardable-extended 2.6.0
Using i18n 1.8.3
Using sassc 2.4.0
Using jekyll-sass-converter 2.1.0
Using rb-fsevent 0.10.4
Using rb-inotify 0.10.1
Using listen 3.2.1
Using jekyll-watch 2.2.1
Using rexml 3.2.4
Using kramdown 2.3.0
Using kramdown-parser-gfm 1.1.0
Using liquid 4.0.3
Using mercenary 0.4.0
Using pathutil 0.16.2
Using rouge 3.20.0
Using safe_yaml 1.0.5
Using unicode-display_width 1.7.0
Using terminal-table 1.8.0
Using jekyll 4.1.1
Using jekyll-feed 0.15.0
Using jekyll-paginate 1.1.0
Using jekyll-seo-tag 2.6.1
Using minima 2.5.1
Bundle complete! 3 Gemfile dependencies, 32 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.

Jekyll Install: bundle install

Gemfile Lock

That bundle install above will create a Gemfile.lock

$ cat Gemfile.lock
    addressable (2.7.0)
      public_suffix (>= 2.0.2, < 5.0)
    colorator (1.1.0)
    concurrent-ruby (1.1.6)
    em-websocket (0.5.1)
      eventmachine (>= 0.12.9)
      http_parser.rb (~> 0.6.0)
    eventmachine (1.2.7)
    ffi (1.13.1)
    forwardable-extended (2.6.0)
    http_parser.rb (0.6.0)
    i18n (1.8.3)
      concurrent-ruby (~> 1.0)
    jekyll (4.1.1)
      addressable (~> 2.4)
      colorator (~> 1.0)
      em-websocket (~> 0.5)
      i18n (~> 1.0)
      jekyll-sass-converter (~> 2.0)
      jekyll-watch (~> 2.0)
      kramdown (~> 2.1)
      kramdown-parser-gfm (~> 1.0)
      liquid (~> 4.0)
      mercenary (~> 0.4.0)
      pathutil (~> 0.9)
      rouge (~> 3.0)
      safe_yaml (~> 1.0)
      terminal-table (~> 1.8)
    jekyll-feed (0.15.0)
      jekyll (>= 3.7, < 5.0)
    jekyll-paginate (1.1.0)
    jekyll-sass-converter (2.1.0)
      sassc (> 2.0.1, < 3.0)
    jekyll-seo-tag (2.6.1)
      jekyll (>= 3.3, < 5.0)
    jekyll-watch (2.2.1)
      listen (~> 3.0)
    kramdown (2.3.0)
    kramdown-parser-gfm (1.1.0)
      kramdown (~> 2.0)
    liquid (4.0.3)
    listen (3.2.1)
      rb-fsevent (~> 0.10, >= 0.10.3)
      rb-inotify (~> 0.9, >= 0.9.10)
    mercenary (0.4.0)
    minima (2.5.1)
      jekyll (>= 3.5, < 5.0)
      jekyll-feed (~> 0.9)
      jekyll-seo-tag (~> 2.1)
    pathutil (0.16.2)
      forwardable-extended (~> 2.6)
    public_suffix (4.0.5)
    rb-fsevent (0.10.4)
    rb-inotify (0.10.1)
      ffi (~> 1.0)
    rexml (3.2.4)
    rouge (3.20.0)
    safe_yaml (1.0.5)
    sassc (2.4.0)
      ffi (~> 1.9)
    terminal-table (1.8.0)
      unicode-display_width (~> 1.1, >= 1.1.1)
    unicode-display_width (1.7.0)


  jekyll (~> 4.1.1)
  minima (~> 2.0)


Jekyll Install: Bundle: Gemfile.lock

Bundle Exec

Run the Jekyll, this will read the _config.yml.

Instead of

$ jekyll serve

Run the Jekyll inside bundle.

$ bundle exec jekyll serve

Jekyll Install: bundle exec jekyll serve

$ bundle exec jekyll serve
Configuration file: /home/epsi/tutor-01/_config.yml
            Source: /home/epsi/tutor-01
       Destination: /home/epsi/tutor-01/_site
 Incremental build: disabled. Enable with --incremental
                    done in 0.035 seconds.
 Auto-regeneration: enabled for '/home/epsi/tutor-01'
    Server address:
  Server running... press ctrl-c to stop.

Open in Your Browser

Now you can open Jekyll in your favorite browser.


RVM is not mandatory.

Non beginner might require different ruby. Actually, it is safer than rely on version in distribution, that could change from time to time.

I use Ruby Verion Manager (RVM) for this guidance, although you can use any other method to install Jekyll.

Official Documentation

The step in this guidance is almost the same with the officials site below.


sitewide or userwide ?

Here, we install RVM using userwide.

Do not install sitewide. Running apt install rvm would create issue later on.


Using RVM require more steps, and patient

  • Install Ruby with RVM

  • Install Jekyll with Bundle

  • Run the site on localhost

We have already cover the last two steps.

Install Ruby with RVM

These are the steps summary:

$ gpg --keyserver hkp:// --recv-keys \
  409B6B1796C275462A1703113804BB82D39DC0E3 \

$ \curl -sSL | bash -s stable

$ source ~/.rvm/scripts/rvm

$ rvm list known

$ rvm install 2.6

$ rvm —default use 2.6.4

$ ruby -v

$ which ruby


$ gpg --keyserver hkp:// --recv-keys \
  409B6B1796C275462A1703113804BB82D39DC0E3 \
gpg: key 105BD0E739499BDB: "Piotr Kuczynski <>" not changed
gpg: key 3804BB82D39DC0E3: "Michal Papis (RVM signing) <>" 1 new signature
gpg: Total number processed: 2
gpg:              unchanged: 1
gpg:         new signatures: 1

You may consider, clicking the image for wider figure.



You need a cript that you can get directly from

$ \curl -sSL | bash -s stable


Use backslash to avoid any curl alias defined in .bashrc. This will run curl executable without alias.

List Known Ruby

$ source ~/.rvm/scripts/rvm

$ rvm list known

RVM: List Known

We can see some Ruby version, such as 2.6.

Install Ruby

Consider install Ruby 2.6.

$ rvm install 2.6

This figure require for bigger resolution.

RVM: Install Ruby

Set Environment

Set yor path environment such as in .bashrc or .zshrc. You may use any text editor, e.g. gedit, geany, nano, or ViM. Add these two lines:

export PATH=${PATH}:~/.rvm/gems/ruby-2.6.5/bin/
source ~/.rvm/scripts/rvm

RVM: bashrc zshrc

Set Default Ruby

$ source ~/.rvm/scripts/rvm

$ rvm --default use 2.6.5
Using /home/epsi/.rvm/gems/ruby-2.6.5

$ ruby -v
ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-linux]

$ which ruby

RVM: Default Ruby

Install Jekyll with Bundle

The next step is of course install Jekyll with bundle within this RVM.

$ gem install bundler

$ cd tutor-01

$ bundle install

$ bundle exec jekyll serve

Now your jekyll is ready to use.

Alternative Setup

You may use docker. But I never try this method.

What’s Next?

Consider continue reading [ Jekyll - Plain - Repository ].

Thank you for reading.