From: Matthew Desmarais <desmarm@...>
Date: 2006-01-27T01:00:40+09:00
Subject: Re: subprocess on Windows

Jeffrey Schwab wrote:
> Whenever my Windows rubyw script launches a subprocess, a command 
> window pops up and immediately disappears.  How can I keep this from 
> happening?
>
> Details:
>
> I keep a daily log of what I do at work.  At the command line, I type 
> "log" to edit the current day's log file.  A Ruby script generates an 
> appropriate name for the file automatically, then launches vim.
>
> Now I'm trying to use the Windows GUI, and I want to have an icon I 
> can click to launch gvim.  Here's the code:
>
>   # log.rbw
>   # Launch gvim on today's logfile, e.g. on
>   # C:\Logs\2006\2006.01\2006.01.26.txt
>
>   logfile = Time.now.strftime('C:\Logs\%Y\%Y.%m\%Y.%m.%d.txt')
>   system("gvim", logfile)
>
> When I click the icon, I get the expected behavior, except that a 
> Windows cmd.exe window flashes on the screen first.  :(
>
>
You may want Kernel.exec instead of Kernel.system.  See ri Kernel.exec 
and ri Kernel.system for more info.