[FFmpeg-user] ffmpeg can not run in background

[littlebat]

On Mon, 13 Jun 2011 20:56:08 +0800
Soho Soho123 <soho123.2012 at gmail.com> wrote:

> Dears,
> 
> how to run ffmpeg in daemon mode ?
> or how to run ffmpeg in background?
> 
Try:
ffmpeg ... </dev/null &

But I still can't know why need append "</dev/null &" to make ffmpeg
work in background, anyone can explain this?

--littlebat