ruby环境安装

##在rbenv和rvm中选择一个，不能都安装####ubuntu自带ruby环境安装开始##sudo apt-get install ruby ruby-dev rubygems ri librubysudo apt-get install ruby1.9.1 ruby1.9.1-dev ri1.9.1 libruby1.9.1sudo update-alternatives --config rubysudo update-alternatives --config gemls /usr/lib/ruby/ls /var/lib/gems/##ubuntu自带ruby环境安装结束####rbenv环境安装开始##sudo apt-get install build-essential gitgit clone https://github.com/sstephenson/rbenv.git ~/.rbenvecho 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profileecho 'eval "$(rbenv init -)"' >> ~/.bash_profileecho '[[ -f $HOME/.bash_profile ]] && . $HOME/.bash_profile' >> ~/.bashrcexec $SHELL -lgit clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-buildrbenv versionsrbenv versionrbenv install --listrbenv install <version>rbenv global <version>rbenv local <version>rbenv shell <version>rbenv rehashrbenv which irbrbenv whence irbrbenv local --unsetrbenv shell --unsetcd ~/.rbenvgit pull#删除rbenvrbenv uninstall#osxbrew updatebrew install rbenvbrew install ruby-build##rbenv环境安装结束####rvm环境安装开始##curl -L https://get.rvm.io | bash -s stable --rails --autolibs=enabled --ruby=1.9.3less /etc/groupsudo usermod -aG rvm userid -nG userrvm requirements#osxbrew updatebrew install autoconf automake libksba libyamlbrew install https://raw.github.com/Homebrew/homebrew-dupes/master/apple-gcc42.rbbash < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )rvm get headvi ~/.bashrc[[ -f $HOME/.bash_profile ]] && . $HOME/.bash_profilePATH=$PATH:$HOME/.rvm/binvi ~/.bash_profile[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" which rubyrvm list knownrvm listrvm install 1.9.3rvm use 1.9.3 --defaultrvm list defaultrvm systemrvm defaultrvm gemdirrvm get latestrvm reloadrvm upgrade 1.9.2-p180 1.9.2-p290rvm rubygems current#删除rvmrvm implode##rvm环境安装结束##gem sources -lgem sources -a http://ruby.taobao.org/gem sources -r http://rubygems.org/gem install gem_name --source http://ruby.taobao.org/gem update --systemgem env pathgem search -rd pkgnamegem list | cut -d" " -f1 | xargs gem uninstall -aIxbundle exec rake assets:precompile RAILS_ENV=development