linux(ubuntu)下ruby开发环境搭建

env setup
linux(ubuntu)下ruby开发环境搭建，包括一些常见问题解决
注意，本文只是我在搭建ruby学习环境时的一些笔记，因为是用gedit编辑的，所以格式化不是很好，另外，只是备忘而已。
2010.1.19
1. install ruby
$ tar xzf ruby-1.8.7-p248.tar.gz
$ mv ruby-1.8.7-p248 ruby187
$ cd ruby187/
$ ./configure
$ make
owen@owen-desktop:~/softinstall/ruby/ruby187$ make test
test succeeded
owen@owen-desktop:~/softinstall/ruby/ruby187$ sudo make install
owen@owen-desktop:~/softinstall/ruby/ruby187$ ruby -version
ruby 1.8.7 (2009-12-24 patchlevel 248) [i686-linux]
-e:1: undefined local variable or method `rsion' for main:Object (NameError)
owen@owen-desktop:~/softinstall/ruby/ruby187$ which ruby
/usr/local/bin/ruby
2. intall Rails through RubyGems
2.1 intall gems
$ tar xzf rubygems-1.3.4.tgz
$ cd rubygems-1.3.4/
$ sudo ruby setup.rb
Installing RubyGems
Installing gem executable
Removing old source_cache files
Removing old RubyGems RDoc and ri
Installing rubygems-1.3.4 ri into /usr/local/lib/ruby/gems/1.8/doc/rubygems-1.3.4/ri
Installing rubygems-1.3.4 rdoc into /usr/local/lib/ruby/gems/1.8/doc/rubygems-1.3.4/rdoc
------------------------------------------------------------------------------
Oh-no! Unable to find release notes!
------------------------------------------------------------------------------
RubyGems installed the following executables:
    /usr/local/bin/gem
2.2 install rails through RubyGems
sudo gem install rails --include-dependencies
3. create a simple App
新建一个目录mkdir rubydev
cd rubydev
使用rails命令创建web app
rails hello
这样一个叫hello的web应用程序框架就创建好了，现在需要做的就是添加自己的业务逻辑
cd hello
使用如下命令创建一个名为App的控制器
ruby script/generate controller App
这时可能会出现如下错误，报告无法加载openssl库：
owen@owen-desktop:~/devspace/rubydev/hello$ ruby script/generate controller App
/usr/local/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:271:in `require_frameworks': no such