# Copy this function into your .bash_profile found at ~/.bash_profile

# You can rename the function to your preference
function new_ruby_project {
  mkdir $1;
  cd $1;
  mkdir lib/;
  touch lib/"$1".rb;
  mkdir test/;
  touch test/test_helper.rb;
  echo "require 'minitest'" >> test/test_helper.rb;
  touch test/"$1"_test.rb
  echo "require 'test_helper'" >> test/"$1"_test.rb;
}

# You use the bash script as follows
$ new_ruby_project cat

# This creates the following directory structure
.
├── lib
│   └── cat.rb
└── test
    ├── cat_test.rb
    └── test_helper.rb