From: Hd Pwnz0r <human.dictionary@...>
Date: 2010-08-01T06:46:06+09:00
Subject: Argument Error

Hi.

I'm learning Ruby and I want to know how to make a script have an
argument, i.e.

ruby script.rb 3 2

So far I have this:

abort "Correct syntax is ruby [script].rb [number to exponentially
multiply by] [exponent]" unless ARGV.size == 2
var = gets.chomp
var2 = gets.chomp
puts  (var.to_i ** var2)

It's a simple exponential calculator.

I get this error when trying to run it with 2 arguments (2 and 3).

exponent.rb:2:in `gets': No such file or directory - 2 (Errno::ENOENT)
from exponent.rb:2:in `gets'        from exponent.rb:2:in `<main>'

Attachments:
http://www.ruby-forum.com/attachment/4895/exponent.rb

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