Install SQLite3 in Ubuntu

1. Install Sqlite3

   
   sudo apt-get install sqlite3 libsqlite3-dev
   sudo gem install sqlite3-ruby

2. To create a data base, we only need to create a empty file.

   
   touch database_name_dev.db
   touch database_name_test.db
   touch database_name_prod.db
   

3. Configure Ruby on Rails Modificar el archivo config/database.yml:

   
   development:
     adapter: sqlite3
     database: db/database_name_dev.db
   
   test:
     adapter: sqlite3
     database: db/database_name_test.db
   
   production:
     adapter: sqlite3
     database: db/database_name_prod.db
   

Installing Rubinius in ubuntu

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> sudo apt-get install ruby
> sudo apt-get install irb
> sudo apt-get install rdoc
> sudo apt-get install libglib2.0-dev libglib2.0-ruby libglib2.0-data
> sudo apt-get install subversion
> sudo apt-get install make automake
> sudo apt-get install bison pkg-config build-essentials libtool libglib2.0-dev

> sudo gem install rake rubyinline rspec ruby2ruby 

> shell$ svn co http://code.fallingsnow.net/svn/rubinius/trunk rbx
> shell$ cd rbx
> sudo gem install sydparse
> sudo gem install RubyInline
> sudo apt-get install bison
# installar glib
> shell$ rake build:all
> shell$ ./shotgun/rubinius -e "puts 'hello rubinius'"