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Ruby is a programming language that is used to create Ruby on Rails. Ruby on Rails is an open-source web framework that was created by David Heinemeier Hansson. Ruby on Rails uses the Model-View-Controller (MVC) architecture pattern and it's written in the Ruby programming language.

Are you unsure why you should utilise RVM? For starters, RVM not only makes installing numerous ruby interpreters / runtimes simple and consistent, but it also includes capabilities like gemsets that aren't normally available out of the box on most ruby installations.

You can do this with Ruby environment managers like RVM and Rbenv. The inclusion of the. ruby-version file in the root of Ruby-written programmes and apps, such as Ruby on Rails projects, is common practise.

By scanning for a. ruby-version file in the root directory of each app, Ruby version managers (such as chruby) verify that an application uses a specified version of Ruby. The file specifies the Ruby version that the programme requires, and the manager switches the environment to utilise that version automatically.

chruby is a tiny shell script that modifies a few environment variables (mostly $PATH) to point to a specific Ruby installation. It also features a separate script that switches Ruby versions automatically when changing folders, which is optional.

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