How to install Ruby on Rails in Ubuntu 11.10

step 1. Install dependencies

Install git : Git is the most popular (aswell as fast and efficient; Linux kernel uses it; developed by Linux Torwalds,the same guy who developed Linux kernel) open source version control system.You can install it in one simple command to install it from the officialpackage repository -

[You could also install git from the source(Download the source code, extract it and execute make && sudo makeinstall) ]

Install Curl : Curl is a command line toolto get a file from FTP/HTTP/HTTPS server. To install, open terminal and executethe command -

step 2. Install RVM (Ruby Version Manager)

Open terminal and execute the command (Iassume you’ve already completed the step 1, otherwise first do that) -

Now, you might have to edit the bashrc fileto load RVM in shell session. To do that type -

and add the following line to the end (andsave the file)

[[ -s "$HOME/.rvm/scripts/rvm" ]]&& source "$HOME/.rvm/scripts/rvm" # Load RVM into a shellsession *as a function*

 Thenreload the shell session using the command -

Now you can test whether the RVM has beeninstalled successfully or not. Open terminal and execute the command -

After executing above command you should begetting this output -

rvm is a function

 That’s All.. You’ve successfully installed theRVM. Next, you are supposed to install few additional dependencies. To find outthose programs type -

After executing the above command, installthe additional packages recommended by RVM -

step 3. Install Ruby

Now, it’s time to install the ruby versionyou want (you’re recommended to use either 1.8.7 or1.9.2). The generic syntax is rvm use version_name. It will also install theassociated packages such as RubyGems and Bundler.

Then select the version, you want to use -

If you aren’t sure about the ruby versioncurrently being used, then type -

step 4. install Rails

Finally, you can install the rails gemusing a simple command -

That’s All.

Now,create a sample application (just for testing) using Ruby on Rails.

Then open your browser and type thefollowing address (to see the application running) -

http://localhost:3000