From: Walton Hoops <walton@...>
Date: 2009-10-13T12:09:45+09:00
Subject: Re: How to call an foreign program(compiled) from ruby?

I should probably also have mentioned, if you need the output,
%x is an easy way to save it:

irb(main):001:0> result = %x['uptime']
=> " 21:08:38 up 4 days,  8:47,  1 user,  load average: 0.06, 0.01, 0.00\n"
irb(main):002:0> puts result
 21:08:38 up 4 days,  8:47,  1 user,  load average: 0.06, 0.01, 0.00
=> nil
irb(main):003:0>

> -----Original Message-----
> From: Walton Hoops [mailto:walton@vyper.hopto.org]
> Sent: Monday, October 12, 2009 9:05 PM
> To: ruby-talk ML
> Subject: Re: How to call an foreign program(compiled) from ruby?
> 
> The builtin system call is liekly what you need.
> http://www.ruby-doc.org/core/classes/Kernel.html#M005971
> 
> 
> > -----Original Message-----
> > From: Harry [mailto:blogdriver@gmail.com]
> > Sent: Monday, October 12, 2009 7:45 PM
> > To: ruby-talk ML
> > Subject: How to call an foreign program(compiled) from ruby?
> >
> > Hi, I am trying to use some bin(like exe files under windows) file
> > under linux , these program is compiled from c++ source, can be
> > executed in command line . I am just wondering what is the simple way
> > to call these program from with the ruby program?
> >
> > i  think Rake might be the answer , I am not look things like FFI
> that
> > can handle c source , I just need to call an program ,pass it some
> > command line parameter, get some return data or some result file ,
> > that's enough
> >
> > i notice some gem (generally speaking) can have some inbound bin file
> > in it's sub folder, I don't know how they glued together with ruby
> >
> > can someone give some hint?
> >
> > Thank you very much
> 
>