[![EO principles respected here](http://www.elegantobjects.org/badge.svg)](http://www.elegantobjects.org) [![Managed by Zerocracy](https://www.0crat.com/badge/C3RFVLU72.svg)](https://www.0crat.com/p/C3RFVLU72) [![DevOps By Rultor.com](http://www.rultor.com/b/yegor256/rumble)](http://www.rultor.com/p/yegor256/rumble) [![We recommend RubyMine](http://www.elegantobjects.org/rubymine.svg)](https://www.jetbrains.com/ruby/) [![Build Status](https://travis-ci.org/yegor256/rumble.svg)](https://travis-ci.org/yegor256/rumble) [![Build status](https://ci.appveyor.com/api/projects/status/orvfo2qgmd1d7a2i?svg=true)](https://ci.appveyor.com/project/yegor256/rumble) [![PDD status](http://www.0pdd.com/svg?name=yegor256/rumble)](http://www.0pdd.com/p?name=yegor256/rumble) [![Gem Version](https://badge.fury.io/rb/rumble.svg)](http://badge.fury.io/rb/rumble) [![Dependency Status](https://gemnasium.com/yegor256/rumble.svg)](https://gemnasium.com/yegor256/rumble) [![Code Climate](http://img.shields.io/codeclimate/github/yegor256/rumble.svg)](https://codeclimate.com/github/yegor256/rumble) [![Test Coverage](https://img.shields.io/codecov/c/github/yegor256/rumble.svg)](https://codecov.io/github/yegor256/rumble?branch=master) ## What this is for? This command line tool helps you send newsletters. ## How to install? Install it first: ```bash $ gem install rumble ``` ## How to run? Run it locally and read its output: ```bash $ rumble --help ``` Simple liquid letter looks like this: ``` {{ first }}, How are you? Best, Yegor ``` The list of emails must contain three columns separated by a comma: first name, last name, and email. ## How to contribute? Just submit a pull request. Make sure `rake` passes. ## License (The MIT License) Copyright (c) 2018 Yegor Bugayenko Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.