Table of Contents
# Install the rails gem in gemset ruby-1.9.3-p0@myset for user bill
__rvm_gemset rails --gemset ruby-1.9.3-p0@myset --user bill --state present
# Do the same and also make ruby-1.9.3-p0@myset the default gemset
__rvm_gemset rails --gemset ruby-1.9.3-p0@myset --user bill \
                   --state present --default
# Remove it
__rvm_ruby rails --gemset ruby-1.9.3-p0@myset --user bill --state absent