OptionParser

A flexible command line option parser.

$gem install OptionParser

Official docs outline

Extra Credit builds an outline of OptionParser's docs the first time your work uses it. Until then, start at the official documentation.

liferaft Liferaft parses Apple build numbers, like 6D1002
middleman-autoprefixer Automatically vendor-prefix stylesheets served by Middleman.
activejob-retry activejob-retry provides automatic retry functionality for failed ActiveJobs, with exponential backoff. Features: * Works with
xcinvoke Manage Xcode versions with ease!
jp_prefecture Convert japan prefecture code (JIS X 0401 based) into prefecture name.
rex-registry Ruby Exploitation(Rex) library for parsing offline registry files from a Windows machine
dry-transformer Data transformation toolkit
latex-decode Decodes strings formatted in LaTeX to equivalent Unicode strings.
solidus_frontend Legacy storefront for the Solidus e-commerce platform. New Solidus installations use Solidus Storefront: https://github.com/solidusio/solidu
dimensions A pure Ruby library for measuring the dimensions and rotation angles of GIF, PNG, JPEG and TIFF images.
transaction_isolation Set transaction isolation level in the ActiveRecord in a database agnostic way. Works with MySQL, PostgreSQL and SQLite as long as you are u
packable If you need to do read and write binary data, there is of course <Array::pack and String::unpack\n The packable library makes (un)packi