From: Gregory Brown <gregory.t.brown@...>
Date: 2007-07-06T05:22:24+09:00
Subject: Re: zombie invasion - six ways to invoke shell processes

On 7/5/07, Giles Bowkett <gilesb@gmail.com> wrote:

> All I remember off the top of my head is that backticks is the most
> terse and system() is the one I use the most. I had forgotten exec()
> even existed. "The Ruby Way" says that exec() doesn't use a subshell
> and system() does. I think that's *why* I forgot exec() existed - I
> think I blacklisted the method from the moment I discovered it.

I wonder if exec() might be useful in forking. Just playing around:

fork do
  exec 'ls'
end
puts "I can has ls?"
Process.wait