Below is every step I took to get Ruby (and Ruby on rails) installed on a vanilla install of Ubuntu 17.10.
First download and install
rbenv-build and get them set up in your bash profile.
$ sudo apt-get install git $ git clone git://github.com/sstephenson/rbenv.git .rbenv $ cd ~/.rbenv && src/configure && make -C src $ cd .. $ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc $ echo 'eval "$(rbenv init -)"' >> ~/.bashrc $ git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build $ source ~/.bashrc
NOTE: If you are using Debian instead of Ubuntu then it would be
.bash_profile instead of
Next we install the remaining requirements for Ruby.
$ sudo apt-get install build-essential $ sudo apt-get install -y libssl-dev libreadline-dev zlib1g-dev $ rbenv install 2.4.3 $ rbenv global 2.4.3 $ ruby -v ruby 2.4.3p205 (2017-12-14 revision 61247) [x86_64-linux]
NOTE: instead of
global you could use
Then you can check everything is installed OK using the
$ sudo apt install curl $ curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash Checking for `rbenv' in PATH: /home/dean/.rbenv/bin/rbenv Checking for rbenv shims in PATH: OK Checking `rbenv install' support: /home/dean/.rbenv/plugins/ruby-build/bin/rbenv-install (ruby-build 20171226-3-g01e7b7b) Counting installed Ruby versions: 1 versions Checking RubyGems settings: OK Auditing installed plugins: OK
Now update gems and install bundler.
$ gem update $ gem install bundler
If you are planning on doing some web development and want to install rails, then we need to install a few dependencies first.
$ sudo apt-get install sqlite3 libsqlite3-dev $ gem install rails -v 5.1.4 $ mkdir rails_projects $ cd rails_projects $ rails _5.1.4_ new hello_app
In order to actually run the rails server for a project that has the
$ sudo apt-get install nodejs $ rails server => Booting Puma => Rails 5.1.4 application starting in development => Run `rails server -h` for more startup options Puma starting in single mode... * Version 3.9.1 (ruby 2.4.3-p205), codename: Private Caller * Min threads: 5, max threads: 5 * Environment: development * Listening on tcp://0.0.0.0:3000 Use Ctrl-C to stop