Installing Ruby On Rails on Debian

The steps below outlines installing Ruby On Rails as a normal user.

• Check first if the user has sudo rights. To do this try executing a simple command

  $sudo ls -a
  [sudo] password for unlimit:
  unlimit is not in the sudoers file. This incident will be reported.
  

  If you see a message like above, you will need to add the user to the sudoer file, this can be done by (you have to be logged in as root to do this)

  $echo 'unlimit ALL=(ALL) ALL' >> /etc/sudoers
  

  Note that the above method is unsafe, but I was doing this on my own test installation and had no other user. It did not create any issues. Recommeded way is to use visudo
• Check if you have ruby installed. Execute the command below

  $ruby -v
  -[bash]: ruby:command not found
  

  If you see something like this, this means ruby is not installed. Install it

  $sudo apt-get install ruby
  

• Install additional libraries

  $sudo apt-get install build-essential
  $sudo apt-get install curl
  $sudo apt-get install libssl-dev
  

• Install rvm

  $curl -L get.rvm.io | bash -s stable
  

• Set the rvm path

  $source $HOME/.rvm/scripts/rvm
  

  You should add this to the .bashrc file.
• Fetch the latest rvm and reload it

  $rvm get head && rvm reload
  

• Install ruby 1.9.3

  $rvm install 1.9.3 --with-openssl-dir=$HOME/.rvm.usr
  

• I needed to install the readline lib

  $sudo apt-get install libreadline-dev
  

• Get the rails gem

  $gem install rails -v 3.2.3
  

• Check if you have rails

  $rails -v
  Rails 3.2.3
  

• Get the readline package

  $rvm pkg install readline
  

• Get sqlite3

  $sudo apt-get install sqlite3 libsqlite3-dev
  

• You are all set to create your first rails app

  $rails new app HelloWorld
  

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