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How to install Ruby On Rails in ubuntu

Posted on  8/18/2013

Ruby is awesome , for getting up running with latest ruby development environment is not that easy, well RVM ( ruby version manager ) comes handy for getting latest ruby . rvm is awesome but when you looks first time at rvm.io you will get confused  , what to use , and how to ,  for  your developement environment . if you want to see alternative you can see rbenv . which is also great and lightweight than rvm .  Simple ruby and ruby on rails gem on ubuntu .  open terminal and use ( either type or copy paste ) follow  steps  

First Install required packages 

sudo apt-get install curl git software-properties-common 
first
first
sudo apt-get install gawk g++ gcc make libc6-dev libreadline6-dev 
zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 autoconf 
libgdbm-dev libncurses5-dev automake libtool bison pkg-config libffi-dev

Next Install rvm

Open terminal

curl -L https://get.rvm.io | bash -s stable

in case on GPG bad signature or error paste this

command curl -sSL https://rvm.io/mpapis.asc | gpg --import -
install rvm
install rvm
It will take few seconds to finish installing then restart your shell to get rvm functionality. after that 
source ~/.rvm/scripts/rvm
type rvm | head -n 1 
rvm is a function  
RVM working
RVM working

Now lets install ruby

rvm install ruby-2.0.0-p247 
install ruby
install ruby
ruby installed
ruby installed
using installed ruby
using installed ruby

Now ruby is installed . now lets install gems

create gemset and set rvm to use that Gemset as default

rvm gemset create r4
rvm use 2.0.0-p247@r4 --default
gemset
gemset

Now lets start installing gems

gem install bundler
gem install rails

wait until it finish installing and after that you can see all the installed gems by using ‘$ gem list ‘


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