From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2010-05-13T06:24:37+09:00
Subject: Re: Command Line Arguments problem

On Wed, May 12, 2010 at 11:16 PM, Derril Lucci <derril.lucci@gmail.com> wrote:
> Greetings,
>  I am working on a project and I added command line options.  Today, I
> took the fateful step in adding the capability to do multiple options in
> the program.  For some reason, the code, which worked perfectly before
> this, now spews out the error:
>    undefined method "-" for nil:NilClass (NoMethodError)
> The code in question is:
>    dateArr[0] = DateTime.parse(ARGV[1])
> Now, this error pops up because ARGV[1] is nil.  But if I run the
> program :
>    ruby Hercules.rb -c 2010-04-15
> ARGV[1] should be 2010-04-15.  What is the problem here?


It must be something else, cause this works for me:

require 'date'

puts DateTime.parse(ARGV[1])

and calling this as

ruby test.rb -c 2010-04-15

prints the date.

Can you show the full code that errors?

Jesus.