I have a script. When I run it via "ruby myscript.rb", it works great.
When I run it via "./myscript.rb", it complains:
: No such file or directory.
The top of the file starts with "#!/usr/bin/env ruby", which works for
other scripts in the same directory. I know it's spelled right. And the
file is set executable.
The colon (":") at the start of the error message makes me think it's
looking for a file with no name when it should be looking for my script.
Again, the script works great when run as a param to the "ruby..."
command.
--
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"ruby myscript.rb" Works, "./myscript.rb" Doesn't
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- 1. Rdoc problem on some gems (like ruby-graphviz)
Hi, One of my computers is running Fedora 12, where I compiled ruby 1.9.1p376. There however, there is a problem with RDoc when I try to install some new gems (message below) like ruby-graphviz. Any idea what to do ??? thx JCLL [root@localhost ~]# gem19 install ruby-graphviz <skipped> Successfully installed ruby-graphviz-0.9.18 1 gem installed Installing ri documentation for ruby-graphviz-0.9.18... Updating ri class cache with 266 classes... Installing RDoc documentation for ruby-graphviz-0.9.18... ERROR: While generating documentation for ruby-graphviz-0.9.18 .. MESSAGE: Error while evaluating /usr/local/lib/ruby/gems/1.9.1/gems/rdoc-2.3.0/lib/rdoc/generator/template/darkfish/classpage.rhtml: undefined method `each' for #<String:0xad61da0> (at "r\">Namespace</h3>\n\t\t\t\t<ul class=\"link-list\">\n\t\t\t\t\t") .. RDOC args: lib README.rdoc COPYING AUTHORS (continuing with the rest of the installation) gem19 update --system Updating RubyGems Nothing to update gem19 list -b --local *** LOCAL GEMS *** doodle (0.2.3) haml (2.2.24) hanna (0.1.12) progressbar (0.9.0) rake (0.8.7) rdoc (2.3.0) ruby-graphviz (0.9.18) And then "require 'graphviz'" fails - 2. Gem dependencies issue
[Note: parts of this message were removed to make it a legal post.] Ok, I'm trying to install gem A. I could give you the names of the gems, but I doubt it matters. Anyway, gem A requires gems B and C, any versions. So it goes and gets the newest version of B and installs it, no problem. Then it goes to install C, but C requires a particular (old) version of B. So it croaks and refuses to install. I'm sure there's an easy solution to this, but I don't know it....if I wanted this much pain, I'd have two wives...
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"ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Nathan O. » Sat, 11 Mar 2006 05:35:40 GMT
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Michael Gorsuch » Sat, 11 Mar 2006 05:51:31 GMT
Did you "chmod +x" the script?
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Michael Gorsuch » Sat, 11 Mar 2006 05:53:04 GMT
Sorry. I just noticed that it is already executable. What if you use the path straight to the ruby interpreter, and not /usr/bin/env?
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Nathan Olberding » Sat, 11 Mar 2006 06:03:47 GMT
> What if you use the path straight to the ruby interpreter, and not Very interesting! When I change /usr/bin/env ruby to /usr/bin/ruby (which is where the binary is), I get: : bad interpreter: No such file or directory -- Posted via http://www.**--****.com/
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Michael Gorsuch » Sat, 11 Mar 2006 06:07:57 GMT
wtf? There isn't any whitespace or blank lines before: #!/usr/bin/ruby is there?
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by rmagick@gmail.com » Sat, 11 Mar 2006 06:13:27 GMT
Whenever I get weird messages like this it always turns out to be a problem with line endings. By any chance did you last save the file on a Windows system?
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Nathan Olberding » Sat, 11 Mar 2006 06:14:42 GMT
I'm glad we're on the same page. :-) Now I don't feel so alone! nathan@vm1:~/public_html$ head -1 myscript.rb #!/usr/bin/ruby nathan@vm1:~/public_html$ Nada. -- Posted via http://www.**--****.com/
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Jonathan Hudson » Sat, 11 Mar 2006 06:17:20 GMT
Your script has been on a Windows box or otherwise polluted with a \r (Carriage return) after ruby? The kernel can't find /usr/bin/ruby\r -jonathan
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Anthony DeRobertis » Sat, 11 Mar 2006 06:21:03 GMT
Windows-style line endings?
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Nathan Olberding » Sat, 11 Mar 2006 06:29:45 GMT
> Your script has been on a Windows box or otherwise polluted with a \r That's it, that's the one. I had this problem with another script the other day. It "went away" after I did a whole bunch of stuff. This must've been it. 2006, and we're still dealing with line endings :-) How do I convert it? -- Posted via http://www.**--****.com/
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Mike » Sat, 11 Mar 2006 06:33:03 GMT
Try dos2unix -M -- Posted via http://www.**--****.com/
Re: "ruby myscript.rb" Works, "./myscript.rb" Doesn't
by Nathan Olberding » Sat, 11 Mar 2006 06:36:58 GMT
I saved it using nano and it's working now. Thanks, all! -- Posted via http://www.**--****.com/
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