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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