there are a couple of option
1) syslog has a mark option, although there is no uptime info
2) uptime >> /var/log/uptime
3) script
if [uptime < /var/log/uptime]
rotate /var/log/uptime
fi
uptime > /var/log/uptime
Mads Rasmussen wrote:
> I would like to log the uptime of our systems, just I cannot see into the
> future to expect when a system crashes so an aproach that logs, like 1 time
> per hour should do it.
>
> I guess you could run a crontab script that just cat's the uptime output into
> /var/log/uptime
>
> This however will be overwritten when the system comes back up, so I thought
> it would be better to log in two files a live one and a backup one.
>
> Like
>
> uptime > uptime.running
> uptime > uptime
>
> This just make it worse, what if the system breaks down twice? Then the first
> logged uptime will vanish.
>
> What I guess I am looking for is when the uptime gets activated, if I could
> just before uptime gets called for the first time, do a logrotate, then I
> would be safe.
>
> It wouldn't be enough to insert a logrotating script in rc.local would it?
>
> Any other approaches?
>
> Regards,
>
> Mads
>
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