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write pc uptime in a file in shutdown

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http://unix.stackexchange.com – I need to log PC uptime. How I can do this? I use uptime for this and I will when ubuntu is shutdown write this command output in a file. (HowTos)

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Submitted by missing on 12/26/2012

Stories similar to write pc uptime in a file in shutdown

I need to find PC uptime from first day until now.

Is logged this uptime hours in somewhere?

Any file log this times?

Can I do that?

who command 49 weeks 6 days ago

I have a question about the who command.

When I type who

The output of my terminal is

username tty1 2012-06-02 06:25 (:0) username pts/0 2012-06-02 13:41 (:0)

My question is what is pts/0 and what is ttyl? Also, what is the (:0) at the end?

Hi

One of our server is showing the uptime 0hr 5mints there is no log in /var/log/messages there is no log in command "last" kernel version is 2.4.9 (RH2.1 AS)

What could be the reason for this. is this issue is related to uptime counter reached max how to verify this. Best Regards KVK

on running the uptime command, it tells me that I have 5 users logged in. I don't understand this since I have on one user registered on this computer. This is the output

11:07:19 up 5 days, 1:11, 5 users, load average: 0.42, 0.67, 0.56

I was testing out the linux api while working on something but got stuck on the following output.

[Abhii@localhost net]$ cat /proc/uptime 39135.53 149657.73

As per specs the first number should be the Uptime and the second number should be the time system has stayed idle.

So why is the former less then latter ???

As an extra piece of info my version information

Linux version 3.5.2-3.fc17.x86

this worked for me in 64 bit, but I added one step:  I got rid of the xserver-xorg-video-nouveau driver, because I got a message about it conflicting with nvidia.  And I had to reboot; I couldn't restart SLiM.Nouveau has been absolute crap with my EVGA GeForce GT 630.  Every few seconds, my screen flickers in X.  And in tty consoles, I get this:[uptime] [drm] nouveau 0000:

I'm new to linux and I installed ubuntu 11.10 x64. I got a HP Envy 14 laptop (i7 second gen) and my batterytime is half the uptime I get in windows 7. Now I got 2hours and it discharges in 30w. In windows I get about 4-5 hours uptime.

I have done some guides so I only use the integrated graphicscard. I ran powertop and pasted it here below, if someone can get something out of it..

I'm curious as to how I could have negative downtime that keeps increasing, as well as uptime beyond 100%.

I am trying to track when the server was rebooted or shutdown. I used w and uptime to see how long it's been up but also used last -x to get a log of times when the server went down.