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Input & Output (IO) In Ruby: The Definitive Guide - RubyGuides
Ruby Commands | Complete List of Ruby Commands with Tips & Tricks
Introduction to Ruby
How to Use Input / Output (IO) in Ruby - YouTube
Character Literals - Graceful.Dev
Command-line Ruby - Speaker Deck
DragonRuby/command_line - a small gem that makes it easier to run shell commands and get stdout, stderr, exit status, pass stdin, and pass env vars : r/ruby
And/Or - Graceful.Dev
Ruby – Wikipedia
Ruby – Seaside Testing
Testing Standard Input and Output in Ruby with the Minitest Framework | by Gil Roman | Medium
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Restricted Ruby - A CTF story - Speaker Deck
HASUMI Hitoshi - Rabbit Slide Show
Introducing Command Line Applications with Ruby
Ruby 2.4.1 Can't read special characters from stdin - Stack Overflow
Level Up Your Command-Line-Fu With Ruby - Honeybadger Developer Blog
How to write a program in ruby for calculator by selecting option for operation. When i select 1 then the operation should be addition and so on - Development - Ruby-Forum