X-FeedAbuse: http://nntpfeed.proxad.net/abuse.pl feeded by 88.191.16.109 Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.dougwise.org!nntpfeed.proxad.net!nospam.fr.eu.org!talisker.lacave.net!lacave.net!not-for-mail From: 7stud -- Newsgroups: comp.lang.ruby Subject: Re: Beginner's Beginner Date: Mon, 11 Apr 2011 15:04:09 -0500 Organization: Service de news de lacave.net Lines: 52 Message-ID: References: <5eb7523dd74392a56e954a3486b4830f@ruby-forum.com> NNTP-Posting-Host: bristol.highgroove.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Trace: talisker.lacave.net 1302552275 6384 65.111.164.187 (11 Apr 2011 20:04:35 GMT) X-Complaints-To: abuse@lacave.net NNTP-Posting-Date: Mon, 11 Apr 2011 20:04:35 +0000 (UTC) In-Reply-To: <5eb7523dd74392a56e954a3486b4830f@ruby-forum.com> X-Received-From: This message has been automatically forwarded from the ruby-talk mailing list by a gateway at comp.lang.ruby. If it is SPAM, it did not originate at comp.lang.ruby. Please report the original sender, and not us. Thanks! For more details about this gateway, please visit: http://blog.grayproductions.net/categories/the_gateway X-Mail-Count: 381305 X-Ml-Name: ruby-talk X-Rubymirror: Yes X-Ruby-Talk: Xref: x330-a1.tempe.blueboxinc.net comp.lang.ruby:2641 william nelson wrote in post #992087: > I am trying to execute the Sudoku Solver listed in the book "The Ruby > Programming Book" (pages 17 -24) > > The code for the Sudoku Module is available online but I do not > understand the following instruction: > > require 'sudoku' > puts Sudoku.solver(Sudoku::Puzzle.new(ARGF.readlines)) > > Can someone walk me through (baby-steps) how to actually "require" > sudoku so that I can see the Module in action. The more explicit your > answer the better since I am a newbee's newbee! When you require() a file, ruby looks in some default directories for the file. You can see which directories are searched by default like this: puts $LOAD_PATH The default directoies that are displayed should also include the current directory ("."), which is the directory specified in the prompt next to which your typed the command to run your program: some_dir/sub_dir> ruby my_program.rb So if the file you are trying to include is in the current directory, or one of the default directories, you can require() it. If the file you are trying to require() is in some other directory, then you need to either move it into the current directory or one of the default directories; or you can tell ruby to also search the directory which contains the file you are trying to require(). There are several ways to accomplish that: 1) Add the directory containing the file you want to require() to the directories that are searched by default: $LOAD_PATH << "/some_dir/sub_dir/my_ruby_programs/" For a more permanent solution, you can also: 2) Add the directory containing the file you want to require, to your system's PATH environment variable. 3) Create a new environment variable called RUBYPATH, which specifies additional directories that you want ruby to search. -- Posted via http://www.ruby-forum.com/.