Create a ruby file and it's test for a small proof of concept

small-ruby.sh

#!/bin/sh

name=$1;

if [ -z "${name}" ]; then
  echo 'usage ./small-ruby <name>';
  exit 1;
fi

mkdir ${name}
cd ${name}
touch "${name}.rb"
echo "--color" > ".rspec"
mkdir spec
echo "require 'spec_helper'\n\ndescribe '${name}' do\nend" > "spec/${name}_spec.rb"
echo "Dir['*.rb'].each { |f| require_relative \"../#{f}\" }" > "spec/spec_helper.rb"