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Top Forums UNIX for Dummies Questions & Answers Difference between system uptime and last boot time. Post 302521359 by pinga123 on Wednesday 11th of May 2011 03:57:14 AM
Old 05-11-2011
Difference between system uptime and last boot time.

My Linux system was last rebooted few hours ago.

But it seems little confusing for me to figure out the exact reason behind it.

I guess following command should justify what i meant to say.

Code:
# date
Wed May 11 13:22:49 IST 2011
# last | grep "May 10"
reboot   system boot  2.6.18-194.el5   Tue May 10 17:35          (19:46)
root     pts/1        XXXX    Tue May 10 17:24 - 18:18  (00:53)
# last | grep "May 11"
oracle   pts/2       XXX Wed May 11 13:08   still logged in
root     pts/1        XXX Wed May 11 13:07   still logged in
root     pts/0        XXX Wed May 11 13:00   still logged in
root     pts/5        XXX    Wed May 11 12:59 - 12:59  (00:00)
root     pts/4        XXX    Wed May 11 12:58 - 12:59  (00:00)
oracle   pts/3        XXX Wed May 11 12:44   still logged in
root     pts/2        XXXX    Wed May 11 12:42 - 12:59  (00:16)
root     pts/1        XXX    Wed May 11 12:41 - 12:59  (00:18)
root     pts/0        XXXX    Wed May 11 12:38 - 12:59  (00:20)
# uptime
 13:22:40 up 47 min,  4 users,  load average: 1.23, 2.48, 2.66
# who -b
         system boot  2011-05-10 17:35

You can see the current system date is Wed May 11 13:22:49 IST 2011
and last boot date is
system boot 2011-05-10 17:35

My question is Why the uptime is saying that the system is up since last 47 min.It should be more than 1 day if i m not wrong.

Correct me.
 

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PTS_QUIT(1)						       AFS Command Reference						       PTS_QUIT(1)

NAME
pts_quit - Exit from pts interactive mode SYNOPSIS
pts quit [-cell] <cell name> [-noauth] [-localauth] [-force] pts q [-c] <cell name> [-n] [-l] [-f] DESCRIPTION
The pts quit command exits from pts interactive mode. The command can be run from the command line or interactively, but on the command line it does nothing and is therefore of questionable utility. CAUTIONS
Prior to OpenAFS 1.4.5 and OpenAFS 1.5.23, the pts quit command was only available on Unix or Linux and when OpenAFS was compiled with the supergroups option (disabled by default). As of OpenAFS 1.4.5 and 1.5.23, it is always available. OPTIONS
Although they have no effect, pts quit takes the following standard pts options: -cell <cell name> Names the cell in which to run the command. For more details, see pts(1). -force Enables the command to continue executing as far as possible when errors or other problems occur, rather than halting execution at the first error. -help Prints the online help for this command. All other valid options are ignored. -localauth Constructs a server ticket using a key from the local /etc/openafs/server/KeyFile file. Do not combine this flag with the -cell or -noauth options. For more details, see pts(1). -noauth Assigns the unprivileged identity anonymous to the issuer. For more details, see pts(1). OUTPUT
This command produces no output. EXAMPLES
Here is an example of a pts interactive session: % pts interactive pts> quit % SEE ALSO
pts(1), pts_interactive(1) COPYRIGHT
Copyright 2007 Jason Edgecombe <jason@rampaginggeek.com> This documentation is covered by the BSD License as written in the doc/LICENSE file. This man page was written by Jason Edgecombe for OpenAFS. OpenAFS 2014-04-08 PTS_QUIT(1)
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