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While these are provided in the hope that they will be useful, please note that we cannot vouch for the accuracy or timeliness of externally hosted materials. It has an elegant syntax and it is the language behind the powerful Ruby on Rails framework.In this tutorial we will show you three different ways to install Ruby on Ubuntu 18.04 system. At the time of writing, the version in the Ubuntu repositories is 2.5.1 which is the latest stable version of Ruby.
AFAIK, gem uninstall is a fairly clean uninstall; after I uninstalled all of the gems after the first go-around, I would have thought that "apt-get install rails" should have installed the necessary version of rubygems and all of the correct version of all of the gems that ruby requires, alas it is not so. A transcript of the steps that I took is here: rails_install_ I backed out all of the gem installs that I had done so far, using "gem uninstall", and ran "apt-get install rails".Then tried typing 'rails -v' and got something like this: (sorry, the exact error message has scrolled out of the terminal line buffer) rails: /var/lib/gems/1.8/bin/rails no file or directory.RVM is the Ruby Version Manager helps for installing and managing Ruby language on systems.First of all, install the latest stable version of RVM on your system using the following command.