# https://rvm.io 
hash curl 2>/dev/null || { echo >&2 "I require curl but it's not installed.  Aborting."; exit 1; }   

# get ruby version manager
curl -L https://get.rvm.io | bash -s stable --ruby

# compile-in external libraries with ruby
rvm pkg install openssl
rvm pkg install zlib

# RECOMPILE: if rvm installation already contains ruby versions
# $ rvm reinstall $(rvm list strings | tr "\n" ',')
# $ rvm all-gemsets do rvm gemset pristine

# install required (baseline) ruby version and recent releases
rvm install 1.8.7-latest 
rvm install 1.9.3-latest

# create a gemset and set it as default
rvm gemset create jsprocket
rvm use 1.9.3-latest@jsprocket --default


# Checks:
#-------
# ruby -v
# rvm gemset list
# rvm list

# https://rvm.io
hash curl 2>/dev/null || { echo >&2 "I require curl but it's not installed.  Aborting."; exit 1; }   

# get ruby version manager latest stable version (of rvm)
curl -L https://get.rvm.io | bash -s stable --ruby

# compile and install required / useful packages (external libraries)
# NOTE: use
# $ rvm reinstall $(rvm list strings | tr "\n" ',')
# and
# $ rvm all-gemsets do rvm gemset pristine
# if you already have rvm with compiled ruby versions
rvm pkg install openssl
rvm pkg install zlib

# install required ruby versions and patches (2) // MANUALLY TWEAK THIS IF NEEDED //
rvm install 1.8.7-latest && rvm install 1.9.3-latest

rvm gemset create jsprocket
rvm use 1.9.3-latest@jsprocket --default



rvm gemset list
rvm list
rvm use 1.9.3-latest@jsprocket --default

Use this snippet in Linux shell to install RVM and set it up for use with Sprockets.

Sprockets JavaScript dependency management tool using clean RVM

javascript, js, Bash, script, linux

Bash