Re: App blueprint, advice please!

[Patrick <optomatic rogers com>]

Thanks!

Sorry for being so dense but just to double check, do you spawn C and 
Python programs form the main App written in Ruby?

I have wanted to learn Ruby for a while now, I could definitely do that. 
Nicola was saying that my Bash idea might be a problem because of the 
spawn time involved with bash. Is Ruby pretty fast spawning these 
secondary programs?

Is the Ruby shell a true system shell? I am just wondering if I could 
still access ftp, netcat, ssh ect..

Thanks for your time.

And thank you Dan and Nicola too. I don't need much convincing that the 
whole Bash as a nervous system + (Python/C/Ruby etc) as the muscle is a 
dumb idea!-Patrick

G Hasse wrote:
> On Sun, Dec 16, 2007 at 08:57:01PM +0100, Dan H wrote:
>   
> > On Sun, 16 Dec 2007 12:47:44 -0500
> > Patrick <optomatic rogers com> wrote:
> >
> >     
> > > With so many aspects to this does anyone think that using Bash
> > > would be useful? For example if we designed all the  smaller
> > > programs to read and write from/to standard input and output, they
> > > could be interlinked with other Bash commands such as ftp, netcat,
> > > ssh, mailx and so on..
> > >
> > > Lets say a customer had a detector and a pump to pump a sample
> > > through it. We could write a Bash script that works something like
> > > this:
> > >
> > > -icon launches Bash script
> > > -sends variable " 2" to pump command to pump 2 ml per minute
> > > -pump command sends signal to serial port or GPIB bus, etc
> > > -bash sends variable "230" to set the detector to wavelength 230 nm
> > > -bash autozeros detector
> > > -launches plot command
> > > -after that launches data process command
> > > -then launches database storage command
> > > - emails whoever, turns your coffee maker on or whatever....etc..etc
> > >
> > > It's a terrible over simplification but hopefully illustrates the
> > > idea.
> > >       
> > I got the idea but I don't think the Bourne shell (bash) would be a
> > particular wise choice to implement it, owing to weird programming
> > paradigms and an almost complete absence of arithmetics. I'm a big fan
> > of C (and shell scripting as well), but it seems that Python has been
> > gaining lots of popularity in the past years.
> >     
>
> Hello!
>
> Or you could do as us and implement control in Ruby. Ruby of Python
> is quite as good. Then you have a modern scripting language to do
> control with.
>
> And now for wom Gtk promotion. We have been developing a SCADA
> system in Gtk, C and Ruby with a SQL database as central storage.
>
> http://www.freescada.com
>
> A tip for you is to "be in the buissines of selling source code".
> We have had quite a success with this. Most of our competitors have
> closed code and the customers are locked in. Since we provide our
> customers with souce code they can expand the application and
> for them selves check the quality.
>
> In this way we have developed an application for the swedish
> defence.  
>
> http://www.raditex.se/~gh/bilder/RadarBildPulser.png
>
>