[BusyBox] ifup, ifdown applets

[Uwe Beutin]

On Mon, 18 Nov 2002, Glenn McGrath wrote:

> > So first: Do you think it's nessesary to use a pid file? I don't like
> > that since I am using JFFS2 as root fs and don't want too much writing
> > happen... And if the system crashes there are still old, invalid pid
> > files around...
> > 
> Im not sure how important the pid file is, i assume its used for
> something :)

Uh, a question: How else can one app send a signal to another app, if 
not via the PID file?! Is there another way?!

	Uwe