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Date: Thu, 18 Sep 1997 09:33:13 +1000 (EST)
From: "Daniel O'Callaghan" <danny@panda.hilink.com.au>
To: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com>
cc: xiyuan@npc.haplink.co.cn, freebsd-isp@FreeBSD.ORG
Subject: Re: sorry to ask a freebsd-question question!
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> > >  Why? How can I deny the "ps -ax | grep ppp"  showing out?
> > 
> > ps -ax | fgrep ppp | fgrep -v fgrep
> 
> Stop with the silliness, just go get pppd's pid(s) from /var/run/ppp*.pid

Sigh!  It was late at night....

To find the ppp interface of pppd on ttyd0
'cat /var/run/ttyd0.if'

To find the pid of the process
'cat /var/run/ppp5.if'

So

---- /usr/local/bin/ppppid------
#!/bin/sh

I=`cat /var/run/tty$1.if`
cat /var/run/$I.pid
--------------------------------