CentOS: rbenv install and system wide install

rbenv-install-system-wide.sh

# CentOS rbenv system wide installation script
# Forked from https://gist.github.com/1237417

# Installs rbenv system wide on CentOS 5/6, also allows single user installs.

# Install pre-requirements
yum groupinstall "Development Tools"
yum install git-core openssl-devel readline-devel 

# Check Git has been installed
hash git 2>&- || { 
  echo >&2 "Error: Git not found. Hint: Try installing the RPMForge or EPEL package repository."; exit 1;
}

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

# Add rbenv to the path
echo '# rbenv setup - only add RBENV PATH variables if no single user install found' > /etc/profile.d/rbenv.sh
echo 'if [[ ! -d "${HOME}/.rbenv" ]]; then' >> /etc/profile.d/rbenv.sh
echo '  export RBENV_ROOT=/usr/local/rbenv' >> /etc/profile.d/rbenv.sh
echo '  export PATH="$RBENV_ROOT/bin:$PATH"' >> /etc/profile.d/rbenv.sh
echo '  eval "$(rbenv init -)"' >> /etc/profile.d/rbenv.sh
echo 'fi'  >> /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-p0
rbenv install 1.9.3-p0
rbenv global 1.9.3-p0

# Rehash:
rbenv rehash

rbenv-install.sh

# CentOS rbenv installation script
# Forked from https://gist.github.com/1237417

# Installs rbenv to user home on CentOS 5/6.

# 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

echo '---------------------------------'
echo "    rbenv installed to $HOME/.rbenv"
echo "    Restart your shell if an existing system wide installation exists!"
echo '---------------------------------'