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I have Linux desktop. I don't leave it 24/7 turned on. I would like to gather statistics on how much time computer was turned on each day, f.e.:

2012-08-21: 7:52
2012-08-22: 8:43
2012-08-23: 7:36

If computer wasn't turned on, no record is required.

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7 Answers 7

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3

You can create a script which runs uptime & dumps it into a file.

uptime >> uptime.log

After that setup a cron job for it. To know more about how to create a cron job : Create Cron Job

Or you can sign-up for an online service to do it for you : Uptime Project

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3
  • yup, I was thinking about this, maybe even get init.d script to run in shutdown.
    – aisbaa
    Aug 23, 2012 at 12:14
  • that's also an option.. so i guess i've answered what you actually needed..
    – aliasgar
    Aug 23, 2012 at 12:30
  • this is really good answer, but I'm looking for more sophisticated solution. Maybe something like workrave, which has this as additional functionality, except I don't need this typing break solution.
    – aisbaa
    Aug 23, 2012 at 15:01
2

according to last manual page:

The pseudo user reboot logs in each time the system is rebooted. Thus last reboot will show a log of all reboots since the log file was created.

so last column of #last reboot command gives you uptime history:

#last reboot
reboot   system boot  **************** Sat Sep 21 03:31 - 08:27 (1+04:56)   
reboot   system boot  **************** Wed Aug  7 07:08 - 08:27 (46+01:19)
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2

This logs the output of 'uptime' every five minutes. This output also includes the number of users currently logged on and load averages of your computer the last 1, 5 and 15 minutes:

sudo bash #root
mkdir /var/log/uptime
crontab -e

Add this line:

*/5  * * * * echo `date +\%Y\%m\%d;uptime` >> /var/log/uptime/uptime.log 2>&1

And to split+gzip the log into weekly files:

cat <<'EOF'. > /etc/logrotate.d/uptime
/var/log/uptime/uptime.log {
    weekly
    dateext
    rotate 99999
    compress
}
EOF

Then, after some time has passed, view your uptime for each day like this:

uplog() { (cd /var/log/uptime/;zcat uptime.log*gz;cat uptime.log) }
uplog|cut -c1-8|uniq -c|perl -aple'$_.=" ".("=" x ($F[0]/5))'

The number 288 (12*24) means the computer was up all day (although reboots shorter than five minutes may go undetected by this method).

Or similarly for each month like this:

uplog|cut -c1-6|uniq -c|perl -aple'$_.=" ".("=" x ($F[0]/150))'
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0
1

There will be datestamped entries in syslog (/var/log/messages*) you can extract this information from.

You could also add K entries to /etc/rc0.d to, for example, to run logger to add a specific syslog record on shutdown. See http://www.debian-administration.org/articles/212 or equivalent for the Linux distribution you are using

$ vim /etc/init.d/uptime
$ cat /etc/init.d/uptime

# chkconfig: 0 99 1
# description: Record uptime at shutdown.

start() {
        uptime >> /var/log/uptime 2>&1
}

case "$1" in
  start)
        start
        ;;
  *)
        echo Usage: $0 start
        ;;
esac

$ chmod +x /etc/init.d/uptime

$ chkconfig --add uptime

$ chkconfig --list uptime
uptime          0:on    1:off   2:off   3:off   4:off   5:off   6:off

$ ls /etc/rc*d/*uptime*
/etc/rc0.d/S99uptime  /etc/rc3.d/K01uptime  /etc/rc6.d/K01uptime
/etc/rc1.d/K01uptime  /etc/rc4.d/K01uptime
/etc/rc2.d/K01uptime  /etc/rc5.d/K01uptime


$ /etc/rc0.d/S99uptime start

$ cat /var/log/uptime
 13:15:28 up 135 days, 12:06,  1 user,  load average: 0.07, 0.04, 0.01
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1

Tuptime can do it when executing "tuptime -l", for example:

# tuptime -l
Startup:  1  at  08:55:01 AM 08/04/2015
Uptime:   24 seconds
Shutdown: OK  at  08:55:25 AM 08/04/2015

Downtime: 5 seconds

Startup:  2  at  08:55:31 AM 08/04/2015
Uptime:   20 seconds
Shutdown: OK  at  08:55:51 AM 08/04/2015

Depending on your locales, the date format can change.

Regards,

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0

I've found similar question on stackoverflow https://stackoverflow.com/questions/79490/linux-uptime-history . Best uptimed seems to be what I want, thank you guys for help.

http://podgorny.cz/moin/Uptimed

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1
0

journalctl does it for you:

-> % journalctl --list-boots
-40 979a9d6333fa456ca3dd454904423f7d Tue 2021-02-09 18:56:00 UTC—Thu 2021-02-11 23:53:07 UTC
-39 4e1cf6ede2574080a2e767991f9a6f88 Fri 2021-02-12 09:20:30 UTC—Fri 2021-02-12 22:52:42 UTC
-38 c61db5934a314044b2aa89675f3174a4 Sat 2021-02-13 11:20:51 UTC—Sat 2021-02-13 17:43:47 UTC
-37 4c17abec4dab43eea06e1886105c6421 Sat 2021-02-13 18:57:54 UTC—Sat 2021-02-13 18:45:40 UTC
-36 01bb21d727494bdb8d2e0594cdc3bff4 Sat 2021-02-13 18:46:41 UTC—Sun 2021-02-14 00:32:35 UTC
-35 5620703289264409ac6fba815ee3a405 Sun 2021-02-14 12:34:13 UTC—Sun 2021-02-14 14:09:35 UTC
-34 f3bd6be41a1946e196100a0f6814696b Sun 2021-02-14 14:28:39 UTC—Mon 2021-02-15 00:15:46 UTC
-33 2560f26a043d4fa080e113570c024ef3 Mon 2021-02-15 09:13:37 UTC—Tue 2021-02-16 00:40:29 UTC
-32 5ffa0830150f4b0aad5060ebafe0579d Tue 2021-02-16 09:41:46 UTC—Tue 2021-02-16 23:53:54 UTC
-31 a277425897734813bda531603da792a6 Wed 2021-02-17 09:54:17 UTC—Wed 2021-02-17 23:51:29 UTC
-30 d3cffbc7373b45bb8c803d1aacfb4c42 Thu 2021-02-18 08:49:56 UTC—Thu 2021-02-18 23:27:59 UTC
-29 18d8740486ae47c9b8431a8ab9ec1b08 Fri 2021-02-19 09:39:38 UTC—Fri 2021-02-19 21:40:16 UTC
-28 3b96b65f6a4a42bca74f0e0eefcdacc4 Sat 2021-02-20 12:47:30 UTC—Sat 2021-02-20 22:14:05 UTC
-27 d1b067adffd64d89856461c030806800 Sun 2021-02-21 12:10:42 UTC—Mon 2021-02-22 22:10:42 UTC
-26 317279eedab14f5fb58cbd5fa4216be9 Tue 2021-02-23 08:56:50 UTC—Wed 2021-02-24 21:38:19 UTC
-25 fe1960acffef4730b5ae322779ac8f92 Thu 2021-02-25 09:00:05 UTC—Fri 2021-02-26 21:04:27 UTC
-24 fa6888263e0f4573b32efd0b3fe44485 Fri 2021-02-26 21:38:50 UTC—Tue 2021-03-02 12:42:35 UTC
-23 1e30020c8af340b3a8402c39aa961366 Wed 2021-03-03 09:25:07 UTC—Wed 2021-03-03 23:39:48 UTC
-22 4d0a03416e584f7982c8d753c3e33b4c Thu 2021-03-04 09:24:13 UTC—Fri 2021-03-05 22:47:20 UTC
-21 2baef30e20444afc89e3b1c69d9c2953 Sat 2021-03-06 10:02:04 UTC—Sat 2021-03-06 22:49:54 UTC
-20 b6e817adf27247d3a98d6585b7a44504 Sun 2021-03-07 10:05:16 UTC—Mon 2021-03-08 18:15:57 UTC
-19 0a61263956da49deb5c29576dd99442a Mon 2021-03-08 18:16:41 UTC—Mon 2021-03-08 23:30:38 UTC
-18 929a363340a54ab683732a8e29237731 Tue 2021-03-09 09:21:29 UTC—Wed 2021-03-10 16:46:59 UTC
-17 a4c7da289f7541f8a90e71494bcddecb Wed 2021-03-10 16:47:40 UTC—Wed 2021-03-10 23:02:51 UTC
-16 954962cf43b84ff784cc998e580b27bc Thu 2021-03-11 08:59:29 UTC—Sat 2021-03-13 00:50:38 UTC
-15 36ebb83d0db548429266cdda742232b0 Sat 2021-03-13 09:47:20 UTC—Sat 2021-03-13 22:46:45 UTC
-14 606f26d5ae7a4b9fa7c0c633ee3d9392 Sun 2021-03-14 10:36:25 UTC—Wed 2021-03-17 22:52:38 UTC
-13 41abbaa6dc724cb886c814b0930395af Thu 2021-03-18 09:10:48 UTC—Thu 2021-03-18 17:43:26 UTC
-12 261bdcf9ed0a41659250b9cf76d2b21b Thu 2021-03-18 17:44:12 UTC—Thu 2021-03-18 22:22:14 UTC
-11 d74e766768e1484bbf0de082aaf7d996 Fri 2021-03-19 08:51:49 UTC—Sat 2021-03-20 23:36:31 UTC
-10 a9a1a966e3864e919e806e52d1966398 Sun 2021-03-21 10:54:47 UTC—Mon 2021-03-22 22:36:35 UTC
 -9 0bcfba4461bd4c71a0a91941f0f4ed97 Mon 2021-03-22 22:38:36 UTC—Mon 2021-03-22 23:13:25 UTC
 -8 b8bd5280be624948a50e6fbd7bd9bdae Tue 2021-03-23 08:51:35 UTC—Tue 2021-03-23 22:54:03 UTC
 -7 eeefd7f87f974017b00f1fec18f6ab35 Wed 2021-03-24 09:23:47 UTC—Wed 2021-03-24 21:27:10 UTC
 -6 5a21602ec42d49129ebaeb00fafdc169 Thu 2021-03-25 09:02:57 UTC—Thu 2021-03-25 23:31:46 UTC
 -5 a35d7b829bf14c0a8131eb55737ec180 Fri 2021-03-26 00:11:28 UTC—Fri 2021-03-26 00:11:48 UTC
 -4 0200a2ffd26e474db477c18908b68299 Fri 2021-03-26 08:43:22 UTC—Fri 2021-03-26 23:14:12 UTC
 -3 5bedcc4337634556aa92f087595328aa Sat 2021-03-27 09:56:44 UTC—Mon 2021-03-29 07:50:43 UTC
 -2 e3f09e82362b4644b89be1cb29fa7c7c Mon 2021-03-29 07:51:24 UTC—Tue 2021-03-30 23:09:29 UTC
 -1 d868669ccca04ed18d3de0789a18e052 Wed 2021-03-31 07:54:37 UTC—Wed 2021-03-31 20:53:09 UTC
  0 e016756d5af94aeeb82a369451d22b26 Thu 2021-04-01 07:45:35 UTC—Thu 2021-04-01 10:10:25 UTC
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