rc scripts: how to start a process that doesn't daemonize itself?

Marco Molteni molter at tin.it
Thu Oct 20 00:14:47 PDT 2005


On Thursday 20 October 2005 03:49, Robert Watson wrote:
> On Wed, 19 Oct 2005, Marco Molteni wrote:
> >> Try putting the "&" in command_args; that way it'll only be used
> >> during startup.  I do that in some of my homegrown rc.d scripts. 
> >> A (probably cleaner) way is to set
> >>
> >> start_cmd="/usr/sbin/daemon /usr/local/bin/myprog"
> >
> > thanks to you and the others posters for the & trick.
> >
> > It works, but as you say it smells hackish. For one, it doesn't
> > detach from the controlling tty. Not a big deal when run from init
> > I think, but it may make a difference when run multiuser from a
> > terminal (say myprog forcestart).
> >
> > anyway, better than nothing ;-)
>
> The daemon(8) page claims it detaches from the tty.  You may also
> want to use the -f argument to redirect stdio.  If it isn't working
> properly, please file a PR, thanks!

Robert,

we are actually saying the same thing ;-). I was comparing the
& (backgroud) approach done with command_args="&" to the
daemon approach done with 
start_cmd="/usr/sbin/daemon /usr/local/bin/myprog"

Maybe it wasn't clear from the quoted context.

marco


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