Install Ruby on Rails on Ubuntu 12.04 LTS

1:Update package repository.

 sudo apt-get update

2:Install git and Curl.

Git:是一个简单，快速，高效的版本控制系统。（对于安装ruby on rails 环境没有关系，只是为了在以后的开发过程中进行版本控制的时候使用。）

Curl:是一个根据web协议获取文件的简单命令行工具。

 sudo apt-get install git

 sudo apt-get install curl

3:Install RVM and Dependencies.

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

load the RVM：

 source ~/.rvm/scripts/rvm

Then install additional dependencies specified by the RVM

 sudo apt-get -y install build-essential openssl libreadline6 libreadline6-dev zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev automake libtool bison subversion

4:Installing Javascript Runtime 参考：https://github.com/joyent/node/wiki/Installing-Node.js-via-package-manager

 sudo apt-add-repository ppa:chris-lea/node.js

 sudo apt-get update

 sudo apt-get install nodejs

5:Install Ruby

 rvm install 2.0.0

Then select the Ruby version you want to use

 rvm use 2.0.0 --default

在此处出现如下问题：

 steven@ubuntu:/usr$ rvm use 2.0.0 --default

 RVM is not a function, selecting rubies with 'rvm use ...' will not work.

 You need to change your terminal emulator preferences to allow login shell.

 Sometimes it is required to use `/bin/bash --login` as the command.

 Please visit https://rvm.io/integration/gnome-terminal/ for a example.

然后执行如下命令：

 /bin/bash --login

解决此问题。

You can check the version of ruby

 ruby -v

输出结果

 ruby 2.0.0p247 (2013-06-27 revision 41674) [i686-linux]

6：Install Rails

 gem install rails

7：test

 steven@ubuntu:/usr/RubyProject$ rails new demo

       create

       create  README.rdoc

       create  Rakefile

       create  config.ru

       create  .gitignore
        ........

 steven@ubuntu:/usr/RubyProject/demo$ rails server

 => Booting WEBrick

 => Rails 4.0.0 application starting in development on http://0.0.0.0:3000

 => Run `rails server -h` for more startup options

 => Ctrl-C to shutdown server

 [2013-10-28 21:45:41] INFO  WEBrick 1.3.1

 [2013-10-28 21:45:41] INFO  ruby 2.0.0 (2013-06-27) [i686-linux]

 [2013-10-28 21:45:41] INFO  WEBrick::HTTPServer#start: pid=23094 port=3000

 Started GET "/" for 127.0.0.1 at 2013-10-28 21:46:26 -0700

 Processing by Rails::WelcomeController#index as HTML

   Rendered /home/steven/.rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.0/lib/rails/templates/rails/welcome/index.html.erb (2.7ms)

 Completed 200 OK in 41ms (Views: 20.2ms | Ac

巴特西

Install Ruby on Rails on Ubuntu 12.04 LTS

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