i have a program in the "main(int argc, const char ** argv)" and i want to make a library. for example "myFunc(int argc, const char ** argv)" i already know what the parameters mean (argc number of params and argv params field) The problem is: Learn Ruby, a ?exible language used to create sites like Codecademy. Ruby is a powerful yet beginner-friendly language used for professional web apps all over the world. Discover Ruby arrays - a fundamental pillar of Ruby. Embedded Ruby API; void ruby_init(") Sets up and initializes the interpreter. This function should be called before any other Ruby-related functions. void ruby_options(int argc, char **argv") Gives the Ruby interpreter the command-line options. void ruby_script(char *name") Sets the name of the Ruby script (and $0) to name. void Ruby command line arguments. By Alvin Alexander. Last updated: June 3 2016. Ruby FAQ: just treat ARGV as a normal Ruby array, and get the values like this: Related command line arguments tutorials. Ruby is a scripting language designed by Yukihiro Matsumoto, also known as Matz. It runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. This tutorial gives a complete understanding on Ruby. Ruby command line arguments. Ruby programs can receive command line arguments. They follow the name of the program, when we run it. #!/usr/bin/ruby puts ARGV Command line arguments specified after the file name are available to a Ruby program in the global array named ARGV. puts ARGV Here we print all the command line arguments to the terminal. ARGF is a stream designed for use in scripts that process files given as command-line arguments or passed in via STDIN.. The arguments passed to your script are stored in the ARGV Array, one argument per element. ARGF assumes that any arguments that aren't filenames have been removed from ARGV.For example: Invokes the block with obj as the proc's parameter like #call.It is to allow a proc object to be a target of when clause in a case statement. Programming Ruby The Pragmatic Programmer's Guide: Previous : Contents ^ Next > Preface. This book is a tutorial and reference for the Ruby programming language. Use Ruby, and you'll write better code, be more productive, and enjoy programming more. Stay ahead with the world's most comprehensive technology and business learning platform. With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more. Ruby's unless construct begins with unless and ends with end. The body is the text between the two. The body is the text between the two. unless ARGV.length == 2 puts "Usage: program.rb 23 45" exit end You know how to get input from a user with gets.chomp or ARGV. Now you will learn about reading from a file. If you are not sure, ask someone for help or search online. Many times searching for "ruby THING" will find answers to what that THING does in Ruby. Try searching for "ruby open." You know how to get input from a user with gets.chomp or ARGV. Now you will learn about reading from a file. If you are not sure, ask someone for help or search online. Many times searching for "ruby THING" will find answers to what that THING does in Ruby. Try searching for "ruby open." What are "ARGV" and "STDIN" exactly? submitted 4 years ago by pewpewer. As the title states, what are they? ARGV and STDIN are constants set by the environment when Ruby starts up. ARGV is an array containing all of the arguments as strings that were typed i