rbenv-install-system-wide.sh

# Update, upgrade and install development tools:
apt-get update
apt-get -y upgrade
apt-get -y install build-essential git-core curl libssl-dev \
                   libreadline5 libreadline5-dev \
                   zlib1g zlib1g-dev \
                   libmysqlclient-dev \
                   libcurl4-openssl-dev \
                   libxslt-dev libxml2-dev

# Install rbenv
git clone git://github.com/sstephenson/rbenv.git /usr/local/rbenv

# Add rbenv to the path:
echo '# rbenv setup' > /etc/profile.d/rbenv.sh
echo 'export RBENV_ROOT=/usr/local/rbenv' >> /etc/profile.d/rbenv.sh
echo 'export PATH="$RBENV_ROOT/bin:$PATH"' >> /etc/profile.d/rbenv.sh
echo 'eval "$(rbenv init -)"' >> /etc/profile.d/rbenv.sh

chmod +x /etc/profile.d/rbenv.sh
source /etc/profile.d/rbenv.sh

# Install ruby-build:
pushd /tmp
  git clone git://github.com/sstephenson/ruby-build.git
  cd ruby-build
  ./install.sh
popd

# Install Ruby 1.9.3-p448:
rbenv install 1.9.3-p448
rbenv global 1.9.3-p448

# Rehash:
rbenv rehash

# Production installing gems skipping ri and rdoc
cat << EOF > /root/.gemrc
---
:sources:
- http://gems.rubyforge.org
- http://gems.github.com
gem: --no-ri --no-rdoc
EOF

# Restart shell or exit re-login
#exec $SHELL

rbenv-install.sh

# Update, upgrade and install development tools:
apt-get update
apt-get -y upgrade
apt-get -y install build-essential
apt-get -y install git-core

# Install rbenv:
git clone git://github.com/sstephenson/rbenv.git ~/.rbenv

# Add rbenv to the path:
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> .bash_profile
echo 'eval "$(rbenv init -)"' >> .bash_profile
source ~/.bash_profile

# Install ruby-build:
pushd /tmp
  git clone git://github.com/sstephenson/ruby-build.git
  cd ruby-build
  ./install.sh
popd

# Install Ruby 1.9.3-p448:
rbenv install 1.9.3-p448
rbenv global 1.9.3-p448

# Rehash:
rbenv rehash