ruby-install

i_rb

#!/bin/sh
_ver='2.1.6'

if [ -z "$V" ]; then
  _ver='2.1.6'
else
  _ver=$V
fi

ruby-install --rubies-dir /usr/local/rubies ruby $_ver
/usr/local/rubies/ruby-$V/bin/gem install bundler

ln -sf "/usr/local/rubies/ruby-$_ver/bin/erb" /usr/local/bin/erb
ln -sf "/usr/local/rubies/ruby-$_ver/bin/gem" /usr/local/bin/gem
ln -sf "/usr/local/rubies/ruby-$_ver/bin/irb" /usr/local/bin/irb
ln -sf "/usr/local/rubies/ruby-$_ver/bin/rake" /usr/local/bin/rake
ln -sf "/usr/local/rubies/ruby-$_ver/bin/rdoc" /usr/local/bin/rdoc
ln -sf "/usr/local/rubies/ruby-$_ver/bin/ri" /usr/local/bin/ri
ln -sf "/usr/local/rubies/ruby-$_ver/bin/ruby" /usr/local/bin/ruby
ln -sf "/usr/local/rubies/ruby-$_ver/bin/testrb" /usr/local/bin/testrb
ln -sf "/usr/local/rubies/ruby-$_ver/bin/bundle" /usr/local/bin/bundle