Check rails version installed

In my project rake gems do not display the rails version but it's display at the top of the environment. If you are using bundler , a more up to date way to do this than bundle show rails is bundle info rails or bundle info [gem-name-here]. This will print version, summary of gem's purpose, link for gem project if it exists , and your local path for the gem. Super convenient. With an open rails console for example, if you are on the server that runs the application you could call Rails.

Source: SO Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to find out which rails version an existing rails application is built on? Ask Question. Asked 9 years, 2 months ago.

Install SQLite on Windows. How do I run a Rails application? What is a Ruby on Rails developer? Where is Ruby gem installed? Installing gems per-user or system-wide. What version of Ruby do I have? Step 1: Check Ruby Version. How do I change Ruby version? What is Ruby used for? What is the latest version of Ruby? Download Ruby. How do I upgrade rails? Why was Ruby on Rails created? Programmer Happiness. How do I downgrade Ruby from Windows? As others have mentioned, its hard to come up with exact solution, in general to downgrade or switch versions for a user:.

Install Ruby 1. What is Ruby and Ruby on Rails? How do I download Ruby on Rails on Mac? How do I uninstall rails? How to uninstall rails completely. We are installing Ruby On Rails on Linux using rbenv. It is a lightweight Ruby Version Management Tool. The rbenv provides an easy installation procedure to manage various versions of Ruby, and a solid environment for developing Ruby on Rails applications. First of all, we have to install git - core and some ruby dependences that help to install Ruby on Rails.

Use the following command for installing Rails dependencies using yum. Now we will install rbenv and set the appropriate environment variables. Use the following set of commands to get rbenv for git repository. Before installing Ruby, determine which version of Ruby you want to install.

We will install Ruby 2. Use the following command for installing Ruby. Ruby provides a keyword gem for installing the supported dependencies; we call them gems. If you don't want to install the documentation for Ruby-gems, then use the following command. Thereafter, it is better to install the Bundler gem, because it helps to manage your application dependencies. This article was published on May 1 st and received its last update on February 13 th It takes about 3 minutes to read.

It has also been published on Medium. Coming from RVM, many people have problems separating gems and thus Rails versions for their applications when switching to rbenv. But this is actually Bundler's job. Although a plugin called rbenv-gemset exists which resembles the functionality of rvm-gemset , rbenv was never intended to manage gems. While there are certain situations where you want to truly separate gems for different applications, it usually works best to follow this rule of thumb:.

Let rbenv take care of managing your Ruby versions and use Bundler for gem management and therefore Rails versions.