[LUNA] Cron

[Paul F. Pearson]

i didn't think of that. i'm not sure of the loop method was intended to run from cron. Of course you're right, if that was the intent.

------
Paul F. Pearson
We all laugh in the same language

----- Bob Nance <bob.nance at novationsys.com> wrote:
> Sorry, I was confused. I thought that was going to be a script called by cron. That would cause it to fork a new script every time cron was triggered which would fire off another miner on to of the one that was already there. My bad. 
> 
> ---
>  Bob Nance
>  Novation Systems
>  256-534-4620
>  
> (iPhone-flavored)
> 
> 
> On Jun 16, 2014, at 4:20 PM, "Paul F. Pearson" <pfpearson at mchsi.com> wrote:
> 
> >> Wouldn't that just stack the system with a new copy
> > 
> > Only if bfgminer forks a new process then exits. Otherwise, the script will be blocked until bfgminer exits.
> > 
> > Someone else suggeted using wait. That would be appropriate if the process runs in the background.
> > 
> > Here's a few examples to demonstrate (I'll use a loop to answer the fear of "stacking the system"). In the first example, xclock will come up once; when you close it it will come up again in 10 seconds. You'll only see it 3 time. In the second example, xclock will come up three times 10 seconds apart. The third example will behave like the first.
> > 
> > # Example 1: script will block until xclock exits
> > #!/bin/sh
> > 
> > for i in 1 2 3; do
> >  xclock
> >  sleep 10
> > done
> > 
> > 
> > # Example 2: script will not block
> > #!/bin/sh
> > 
> > for i in 1 2 3; do
> >  # run xlcok in the background; I think sh does this using a fork
> >  xclock &
> >  sleep 10
> > done
> > 
> > # Example : script will block until xclock exits
> > #!/bin/sh
> > 
> > for i in 1 2 3; do
> >  # run xlcok in the background; I think sh does this using a fork
> >  xclock &
> >  # now, wait for the xclock process to finish
> >  wait $!
> >  sleep 10
> > done
> > 
> > Caveats: I only know what Michael said about bfgminer, so I can't say how it behaves. My brain isn't working well enough to use the right terminology about blocking, etc. 
> > 
> > ------
> > Paul F. Pearson
> > We all laugh in the same language
> > 
> > ----- "Bob Nance" <bob.nance at novationsys.com> wrote:
> > 
> >> Wouldn't that just stack the system with a new copy of the software
> >> running? Or is the software smart enough to not run twice?
> >> 
> >> ---
> >> Bob Nance
> >> Novation Systems
> >> 256-534-4620
> >> 
> >> (iPhone-flavored)
> >> 
> >> 
> >>> On Jun 13, 2014, at 8:40 PM, "John Price" <jp_luna at gcfl.net> wrote:
> >>> 
> >>> How about something much simpler...
> >>> 
> >>> #!/bin/sh
> >>> while /bin/true; do
> >>> bfgminer <various command line params>
> >>> sleep 10 #wait a bit so if there's a real problem you don't hammer
> >> the
> >>> server
> >>> done
> >>> 
> >>> 
> >>> 
> >>>> On Fri, Jun 13, 2014 at 8:32 PM, Michael W. Hall <hallmw at att.net>
> >> wrote:
> >>>> 
> >>>> Ok.  I have a question.  I am mining BTC.  Have been since
> >> February.  I
> >>>> am running bfgminer.  I have it running, but would like to improve
> >> it.
> >>>> When I am away from home (work or vacation), the bfgminer program
> >> will
> >>>> stop.
> >>>> 
> >>>> I know I can do it just not sure how to go about it.  I would like
> >> the
> >>>> system to check every 5 minutes or so if the bfgminer is running.
> >> If it
> >>>> is then do nothing.  If it is not then I would like to restart.  I
> >> have
> >>>> to start the program like so,
> >>>> 
> >>>> bfgminer <various command line params>
> >>>> 
> >>>> Any ideas on the best way to do this?
> >>>> 
> >>>> Thanks,
> >>>> Michael
> >>>> 
> >>>> _______________________________________________
> >>>> LUNA mailing list
> >>>> LUNA at lunagroup.us
> >>>> http://lunagroup.us/mailman/listinfo/luna
> >>> -------------- next part --------------
> >>> An HTML attachment was scrubbed...
> >>> URL:
> >> <http://lunagroup.us/pipermail/luna/attachments/20140613/8f743ab7/attachment.html>
> >>> _______________________________________________
> >>> LUNA mailing list
> >>> LUNA at lunagroup.us
> >>> http://lunagroup.us/mailman/listinfo/luna
> >> _______________________________________________
> >> LUNA mailing list
> >> LUNA at lunagroup.us
> >> http://lunagroup.us/mailman/listinfo/luna
> > _______________________________________________
> > LUNA mailing list
> > LUNA at lunagroup.us
> > http://lunagroup.us/mailman/listinfo/luna
> _______________________________________________
> LUNA mailing list
> LUNA at lunagroup.us
> http://lunagroup.us/mailman/listinfo/luna