Re: Start something from sawfishrc

[Michal Jaegermann <michal harddata com>]

On Mon, Nov 10, 2003 at 07:57:52AM +0100, c marschalek schrack-seconet com wrote:
> 
> >You can use:
> > (system "your-program &")
> 
> Thanks for your answer!
> 
> >But I'm not sure it is such a good idea, because the rc file will be
> >re-read if for instance you restart sawfish, and then launch this apps
> >again. What about starting them from ~/.xinitrc instead
> 
> hm... you're right about that.

Pretty easy to make sure that this does not happen.

(system "[ \"$(/sbin/pidof my_app)\" ]  || my_app &")

or something equivalent.  If you have troubles with quoting launch
your applications through a separate "helper" shell script which
does that checking.  The only problem is if you _want_ to have
multiple instances of some app started and then you have to do some
counting.  Also if you have many users on a system you have to
check that a running instance does not belong to somebody else, so
this is tad more complicated, but the general idea is the same.

BTW - if you are grepping through an output from 'ps' looking
for some particular application then do something like
ps <flags> | grep '[e]macs'
and then you will not find this grep process itself.

   Michal