Rails - Apr 2009 - Testing an external script

How does one pass a command line, including arguments, from a Ruby
script to the shell.  Specifically

  some_method("#{@script} -o #{@outfile} -f #{@format}")

I have tried Kernel.` Kernel.system, %x but have not hit on a correct
syntax yet.
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By "testing" you just mean "running", right?

James Byrne wrote:
> How does one pass a command line, including arguments, from a Ruby
> script to the shell.  Specifically
> 
>   some_method("#{@script} -o #{@outfile} -f #{@format}")
> 
> I have tried Kernel.` Kernel.system, %x but have not hit on a correct
> syntax yet.
It''s just system(""). If your variables are valid, if your
script is in the
current right folder, and if your @outfile has no spaces in it, then the above 
should work with system("").

What error message do you get?

And note you can use popen() to route the output into a string in your
program...

-- 
   Phlip
   http://flea.sourceforge.net/resume.html

Phlip wrote:
> By "testing" you just mean "running", right?
> 
I ended up with this:


  task = "ruby #{@forex_xfr_script} " +
                "''-f #{@forex_outfile_type}'' " +
                "''-o #{@forex_outfile_name}'' " +
                "-t"
  stdout = %x(#{task})


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