Everything you need to use RVM sanely. Check out the instructions in the rvm-setup file to get started.

.powrc

if [ -f ".rvmrc" ]; then
  source ".rvmrc"
fi

.ruby-gemset

foo

.rvmrc

if [ -f "$rvm_path/scripts/rvm" ]; then
  source "$rvm_path/scripts/rvm"
  VERSION_FROM_GEMFILE=$(perl -ne '/^ruby .([0-9\.]+).$/ && print "$1"' Gemfile)

  if [ -f ".ruby-version" ]; then
    rvm use `cat .ruby-version`
  fi

  if [[ -n $VERSION_FROM_GEMFILE ]]; then
    rvm use $VERSION_FROM_GEMFILE
  fi

  if [ -f ".ruby-gemset" ]; then
    rvm gemset use --create `cat .ruby-gemset`
  fi
fi

rvm-setup

#!/usr/bin/env bash
# save this in /usr/local/bin by running the following:
# $ curl -o /user/local/bin/rvm-setup https://gist.githubusercontent.com/aharpole/d1194e08cec010375bb3/raw/596bf4d9803bfa072bb598db142fca27d7276cd3/rvm-setup
# $ chmod +x /usr/local/bin/rvm-setup
echo "${PWD##*/}" > .ruby-gemset
curl -o .rvmrc https://gist.githubusercontent.com/aharpole/d1194e08cec010375bb3/raw/4cc47262d16a777a6f087906f810110168b9164c/.rvmrc
VERSION_FROM_GEMFILE=$(perl -ne '/^ruby .([0-9\.]+).$/ && print "$1"' Gemfile)

if [[ -n $VERSION_FROM_GEMFILE ]]; then
  echo "$VERSION_FROM_GEMFILE" .ruby-version
else
  echo "2.3.0" > .ruby-version
fi

curl -o .powrc https://gist.githubusercontent.com/aharpole/d1194e08cec010375bb3/raw/4273909fcaf9ed7827f827b5cf8fc2d4c0465bbd/.powrc
cd .

To install this to your shell:

curl -o /usr/local/bin/rvm-setup https://gist.githubusercontent.com/aharpole/d1194e08cec010375bb3/raw/2cf48d045b49691f32b6a7488a02408c1af76e6b/rvm-setup
chmod +x /usr/local/bin/rvm-setup

Just run rvm-setup then type cd .. You'll be prompted to trust the .rvmrc file; just type "yes" and hit Enter. Boom. Done.