export IRBRC=$HOME/.irbrc
export PATH=$PATH:$HOME/.gem/ruby/1.9.1/bin

export IRBRC=$HOME/.irbrc
export PATH=$PATH:$HOME/.gem/ruby/1.9.1/bin
export GEM_HOME="$(ruby -rubygems -e 'puts Gem.user_dir')"

Set gem path to per-user.
Set gem path to per-user.
