From: Mark Hubbart <discord@...>
Date: 2004-06-19T00:37:17+09:00
Subject: Re: Which classes are installed on my system?


On Jun 18, 2004, at 1:58 AM, Todd Gardner wrote:

> Hello everyone,
>
> Even though these seem extremely silly and simple questions, I haven't
> yet seen this information in the FAQ or on the Web.  I must be looking
> in the wrong places.
>
> For general information I have looked at
> Http://dev.rubycentral.com/book/builtins.html however, my question is
> about my specific system.
>
> How do I see the list of all the classes or methods installed on my
> specific system?

If you have ri installed, run `ri -c` to get a list of known classes. 
If the ri database was made properly, It will list allt eh classes 
installed with Ruby.

> Can I determine proper usage of a specific method installed on my
> system using a man page or something similar?

`ri SomeObject#some_method` or `ri SomeObject::some_method`.

If you don't have ri installed (it comes standard with recent versions 
of Ruby) check out the stdlib docs at http://www.ruby-doc.org/stdlib/

HTH,
Mark