Linux script that indicates time the server was offline?
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by RD
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Published on 2010-05-18T10:07:56Z
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2010/05/18
10:11 UTC
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Below is data taken from my dedicated server:
root@namhost [~]# last
root pts/0 XXX Tue May 18 09:46 still logged in
root pts/0 XXX Mon May 17 08:51 - 12:18 (03:26)
reboot system boot XXX Mon May 17 08:49 (1+00:59)
root pts/0 XXX Sun May 16 11:50 - 13:15 (01:25)
root@namhost [~]# last | grep "system boot"
reboot system boot 2.6.18-164.15.1. Mon May 17 08:49 (1+01:02)
reboot system boot 2.6.18-164.el5 Tue May 11 04:20 (7+05:31)
reboot system boot 2.6.18-164.el5 Tue May 11 03:53 (7+05:58)
reboot system boot 2.6.18-128.el5 Mon Oct 5 22:40 (-3:-50)
....
I need a script that I can run on an hourly basis that will: 1. Calculate the total downtime since the first date 2. The overall downtime percentage 3. Store this data in a file at /home/bla/file.txt, in the following format: TotalDowntime=03:02:02 Average=0.01%
How do I go about doing this?
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