Remotely (re)starting my system via a smart power switch?

Colin Law clanlaw at gmail.com
Sun Jul 24 20:51:51 UTC 2022


On Sun, 24 Jul 2022 at 21:41, Bo Berglund <bo.berglund at gmail.com> wrote:
>
> On Sun, 24 Jul 2022 13:28:49 +0100, ubuntu at howorth.org.uk wrote:
>
> >> I will then probably add a cron job to log the temperature of the CPU
> >> every minute or so such that I can view it after the laptop has shut
> >> down. (Logging to a network drive).
> >>
> >> Is there a simple command I can use in the log script to remove lines
> >> older than say an hour from the log file when I add a new entry?
> >> Or keep only the last 60 lines or so in the file.
> >
> >You could set up munin or something similar.
>
> Well, I don't know munin but I think something like this will do using bash:
>
> cd ~/log
> date "+%F %T" >> templog.log  # Save timestamp in file
> sensors | grep "Core 0:" >> templog.log # Produces 1 log line
> tail -n 50 templog.log > templog2.log # Save last 25 checks
> mv templog2.log templog.log # Overwrite logfile with pruned version
>
> If a crash occurs the logfile will show the temp at crash time.
>
> Of course I will have to check that the logfile is not overwritten at wakeup...

Personally I suspect that the machine will die completely pretty soon,
there is obviously a hardware problem of some sort, so all this may be
a waste of time.

Colin




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