Install Ruby as User

Ruby is a very common language exspecially for Web-Applications you can use Rails or Sinatra for fast an comfortable Development. Unfortunately ruby wasn’t installed in my University’s PC-Pool. So I needed to install Ruby and Sinatra manually and as user-Install. To do this theres a tool called _rbenv_

First you need to download rbenv:

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv

After installing you need to setup your shell:

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc 
echo 'eval "$(rbenv init -)"' >> ~/.bashrc 

To install a new version of ruby you also need the ruby-build-plugin.

git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

Now you are able to install ruby. Open a new shell and type

rbenv install 2.1.2

Where 2.1.2 is the ruby-version you want to install. Finally you need to set up the version you want to use by typing:

rbenv local 2.1.2

Thats all. Now you can install gems by typing gem install [GEMNAME]. All your gems are installed locally.