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Operating Systems Linux Red Hat Difference between uptime and who -b Post 302950344 by seenuvasan1985 on Thursday 23rd of July 2015 02:56:06 PM
Old 07-23-2015
RedHat Difference between uptime and who -b

Hi Folks,

I have been checking on a redhat server for patching, when I tried the output for uptime and who -b both are not matching. I do not know the reason what happened and why it seems like this.

Please assist someone and explain in detail.
I would appreciate if I get the right answer.Smilie

Code:
[svcsuprt@miaapp003 ~]$ uptime
18:54:03 up 187 days, 23:07, 1 user, load average: 0.12, 0.04, 0.02

[svcsuprt@miaapp003 ~]$ who -b
system boot 2014-08-10 18:24

[svcsuprt@miaapp003 ~]$ last reboot
reboot system boot 2.6.32-504.el6.x Sun Aug 10 18:24 - 18:54 (347+00:29)
wtmp begins Sun Aug 10 18:24:50 2014

Moderator's Comments:
Mod Comment Please use CODE tags when displaying sample input, output, and code segments.

Last edited by Don Cragun; 07-23-2015 at 04:36 PM.. Reason: Add CODE tags
 

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uptime(1)							   User Commands							 uptime(1)

NAME
uptime - show how long the system has been up SYNOPSIS
uptime DESCRIPTION
The uptime command prints the current time, the length of time the system has been up, and the average number of jobs in the run queue over the last 1, 5 and 15 minutes. It is, essentially, the first line of a w(1) command. EXAMPLES
Below is an example of the output uptime provides: example% uptime 10:47am up 27 day(s), 50 mins, 1 user, load average: 0.18, 0.26, 0.20 ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
w(1), who(1), whodo(1M), attributes(5) NOTES
who -b gives the time the system was last booted. SunOS 5.10 18 Mar 1994 uptime(1)
All times are GMT -4. The time now is 05:14 PM.
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