sudo apt-get install rubygems
 sudo gem install rubygems-update
 sudo update_rubygems
 sudo apt-get install libsqlite3-dev
 sudo gem install sqlite3-ruby rails

--
Liu Lantao
College of Information Science and Technology, Beijing Normal University
EMAIL: liulantao ( at ) gmail ( dot ) com ;
WEBSITE: http://www.liulantao.com/ .
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