Neither ruby and nor irb can load .rb file in current directory

Question

I'm having a really noob problem with importing files in Ruby. I'm making a Ruby app in Windows XP. All the class files for the app are in "C:/Documents/Prgm/Surveyor_Ruby/lib". But when I require a file in another file, neither ruby nor irb can find the required file.

The current directory's contents:

C:\Documents\Prgm\Surveyor_Ruby\lib>dir  Volume in drive C has no label.  Volume Serial Number is AAAA-BBBB   Directory of C:\Documents\Prgm\Surveyor_Ruby\lib  10/09/2010  06:32 PM    <DIR>          . 10/09/2010  06:32 PM    <DIR>          .. 10/08/2010  03:22 PM             5,462 main (commented).rb 10/08/2010  03:41 PM                92 question.rb 10/08/2010  09:06 PM             2,809 survey.rb 10/09/2010  06:25 PM               661 surveyor.rb 10/08/2010  01:39 PM             1,546 test.rb                5 File(s)         10,570 bytes                2 Dir(s)  40,255,045,632 bytes free 

Confirmation that irb is in correct directory:

C:\Documents\Prgm\Surveyor_Ruby\lib>irb irb(main):001:0> Dir.pwd => "C:/Documents/Prgm/Surveyor_Ruby/lib" 

...yet irb can't load survey.rb:

irb(main):002:0> require 'survey' LoadError: no such file to load -- survey         from <internal:lib/rubygems/custom_require>:29:in `require'         from <internal:lib/rubygems/custom_require>:29:in `require'         from (irb):2         from C:/Ruby192/bin/irb:12:in `<main>' 

Answer 1

None of these worked for me, but this did:

irb -I . >require 'file'  => true 

Answer 2

require './hede' 

or

require_relative 'hede' 

This works for me in both Ruby (1.9.3) and JRuby (1.7.x) on linux. I haven't tested it on windows.