Modules
Common Ruby modules and standard-library helpers.
CSV
Parse and generate CSV data in Ruby
Date
Work with calendar dates in Ruby's standard library
Dir
Work with directories in Ruby — list files, navigate, create, and delete directories
ERB
Template engine for embedding Ruby in HTML and text files
File
Work with files, paths, and directories in Ruby
FileUtils
Utilities for file and directory operations in Ruby
JSON
Parse and generate JSON data in Ruby
Logger
Log messages from your Ruby applications with configurable severity levels
Net::HTTP
HTTP client library for Ruby. Make HTTP requests, handle responses, and manage connections.
Readline
Provides line-editing functionality for interactive input, enabling command-line editing features.
Readline.readline(prompt = nil) Set
A collection of unordered unique values in Ruby
Time
Work with dates and times in Ruby
YAML
Parse and generate YAML data in Ruby