ruby calc.rb or just calc.rb
in [Ruby]
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From: Jesús Gabriel y Galán on 26 Jul 2010 07:13 On Mon, Jul 26, 2010 at 12:29 PM, Kaye Ng <sbstn26(a)yahoo.com> wrote: > Beginner here (in ANY programming language), so pls bear with me. > > Please see the first example on this page. > http://pine.fm/LearnToProgram/?Chapter=01 > > It says to type in ruby calc.rb > > I find it doesn't work. > What works are: > calc.rb > or simply > calc > > Am I wrong? I saved the calc.rb in G:\Ruby\Practice > I opened command prompt in Accessories, went to G:\Ruby\Practice , > then typed ruby calc.rb > > G:\Ruby\Practice>ruby calc.rb > 'ruby' is not recognized as an internal or external command, > operable program or batch file. I'm not a Windows expert, but what this is saying is that "ruby", the ruby executable, is not in your PATH. You could put it in your path, IIRC, in some global settings (search for setting environment variables in Windows) > so I typed calc.rb and it worked. This is probably because you (or the Ruby installation program) have associated .rb programs to the ruby executable (you can check this in the File Types Association in some contextual menu in the Explorer, I think). > calc also worked. I'm totally guessing here, but it might be that the Windows cmd expands a command with existing files in the current directory, if it doesn't find a command like that? Jesus.
From: Guillaume Bloss on 26 Jul 2010 09:08 I agree with Jesús Gabriel y Galán : the ruby command will only work if you put the "$path\ruby\bin" in your PATH -> right click on computer, then properties, advanced, environment variables, edit your PATH variable and add you ruby path ex : c:\ruby\bin;..... dont delete or modify existing path ^^ it's may be usefull if you want see ruby errors If you only type the filename like calc.rb, windows will try to run the file with the assiociated program in your case, ruby, so it will work fine, but if you will get an error, the cmd window will be close with your ruby application. If you only run calc, without the ".rb" windows will try ton run runnable file with calc name ... That could be a problem if for example you use ocra to get a ruby exe (named calc.exe) and you still have your calc.rb in the same folder. I dont know how windows will react ... it may ask you if you want run the .exe or the .rb, or send you an error, or maybe run the .exe .. -- Posted via http://www.ruby-forum.com/.
From: James on 26 Jul 2010 12:18 [Note: parts of this message were removed to make it a legal post.] As a curiosity issue, what version of Windows are you using? Because Windows 7, at least, has a different way you can edit the user specific PATH variable rather than the system PATH variable. Control Panel -> User accounts -> Change my environment variables
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