[arch-general] get pid of daemon in init script

[Travis Willard]

On Feb 8, 2008 3:06 PM, Sentinel <kanocz at intrak.sk> wrote:
> Hi!
>
> It works perfectly (at least for me), just you have to ensure, that you
> call it with appropriate rights while testing:
> my testing:
> sentinel at sentinel:~$ su
> Password:
> with power comes great responsibility
> root at sentinel:/home/sentinel# PID=`pidof -o %PPID -x /usr/sbin/proftpd`
> root at sentinel:/home/sentinel# echo $PID
> 7469
> root at sentinel:/home/sentinel# [ -z "$PID" ] && echo "pid is empty"
> root at sentinel:/home/sentinel#
>
> Tom

That is because you already have /usr/sbin/proftpd running.  In the
case of running the start initscript, the PID is sampled before the
application ever starts, and hence will return no PID, as Dan already
explained.