A high-level IO library that provides validation, type conversion, and more for command-line interfaces. HighLine also includes a complete menu system that can crank out anything from simple list selection to complete shells with just minutes of work.

A DSL for gathering options and parsing command line flags

The complete solution for Ruby command-line executables. Commander bridges the gap between other terminal related libraries you know and love (OptionParser, HighLine), while providing many new features, and an elegant API.

Methadone provides a lot of small but useful features for developing a command-line app, including an opinionated bootstrapping process, some helpful cucumber steps, and some classes to bridge logging and output into a simple, unified, interface

Isn't it awesome how `optparse` and other option parsers generate help and usage-messages based on your code?! Hell no! You know what's awesome? It's when the option parser *is* generated based on the help and usage-message that you write in a docstring! That's what docopt does!

Clamp provides an object-model for command-line utilities. It handles parsing of command-line options, and generation of usage help.

Trollop is a commandline option parser for Ruby that just gets out of your way. **DEPRECATION** This gem has been renamed to optimist and will no longer be supported. Please switch to optimist as soon as possible.

Choice is a simple little gem for easily defining and parsing command line options with a friendly DSL.

Run shell commands safely, even with user-supplied values

A simple mixin for CLI interfaces, including option parsing

Cri allows building easy-to-use command-line interfaces with support for subcommands.

A modular Ruby toolkit for building clean, correct, and robust CLI commands as plain-old Ruby classes.

Clap is a small library that can be bundled with your command line application. It covers the simple case of executing code based on the flags or parameters passed.

Quickl helps you creating commandline ruby programs. From simple commands with options to complex delegators with subcommands, global and local options.

Command-line arguments to hash

This is an lightweight option parser, which is less than 80 lines short. It has strong validations and a short, clear and easy to use syntax. Feel free to copy all 80 lines (55 lines without validations / empty lines) into your script rather installing the gem.

cmdparse provides classes for parsing (possibly nested) commands on the command line; command line options themselves are parsed using optparse.

command line argument parser

OptionParser based CLI support for rapid CLI development in an object-oriented context. This library wraps Ruby's OptionParser for parsing your options under the hood, so you get all the goodness that the Ruby standard library provides. On top of that it adds a rich and powerful DSL for definin...

The getopt library provides two different command line option parsers. They are meant as easier and more convenient replacements for the command line parsers that ship as part of the Ruby standard library. Please see the README for additional comments.

Command-line option parser and command interface.

ArgParser is a simple, yet powerful command-line argument parser, with support for positional, keyword, flag and rest arguments, any of which may be optional or mandatory.

It's just here to handle arguments provided to Application. Mainly optional via switches. Currently handles plain-text Console arguments.

Yet another command line option parser in Ruby, based on Perl's Getopt::Long module.

Sensible options parsing

Parse command-line options into a configuration hash

A flexible command line option parser.

Build command-suite CLI apps that are awesome. Bootstrap your app, add commands, options and documentation while maintaining a well-tested idiomatic command-line app