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Dmesg with date possible?

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Operating Systems HP-UX Dmesg with date possible?
# 8  
Old 03-17-2014
Exactly the only date you will get is that of dmesg execution... look at the man pages!

I wonder if you are not confusing with what you see in syslog.log file...
# 9  
Old 03-17-2014
@Corona688 I don't know much about it, its looks like dmesg output is in nanoseconds from this article https://supportcenter.checkpoint.com...tionid=sk92677, I didn't go much into it since my system supports -T option.
# 10  
Old 03-17-2014
Good point. Right now that's a mystery. If the OP could post some output, that would be nice. If it doesn't have timestamps already, we can't really add them.
# 11  
Old 03-17-2014
Yes, thats true.
# 12  
Old 03-19-2014
Now there are no new messages shown. Here's an example.
Code:
# dmesg
0/0/0/10/0/0/1.0x5006016930201d6b.0x400d000000000000 eslpt
0/0/0/10/0/0/0.0x5006016930201d6b.0x400e000000000000 eslpt
0/0/0/10/0/0/1.0x5006016930201d6b.0x400e000000000000 eslpt
0/0/0/10/0/0/0.0x5006016930201d6b.0x4014000000000000 eslpt
0/0/0/10/0/0/1.0x5006016930201d6b.0x4014000000000000 eslpt
0/0/0/10/0/0/0.1.3.255.0 fcd_vbus
0/0/0/10/0/0/0.1.3.253.0.0 tgt
0/0/0/10/0/0/1.2.3.255.0 fcd_vbus
0/0/0/10/0/0/0.1.3.253.0.0.0 sctl
0/0/0/10/0/0/1.2.3.253.0.0 tgt
0/0/0/10/0/0/1.2.3.253.0.0.0 sctl
0/0/0/10/0/0/0.1.3.0.0 fcd_vbus
0/0/0/10/0/0/0.1.3.0.0.0 tgt
0/0/0/10/0/0/0.1.3.0.0.0.1 sdisk
0/0/0/10/0/0/1.2.3.0.0 fcd_vbus
0/0/0/10/0/0/1.2.3.0.0.0 tgt
0/0/0/10/0/0/1.2.3.0.0.0.1 sdisk
0/0/0/10/0/0/0.1.3.0.0.0.2 sdisk

There's no need to have a date here but sometimes we have problems after one or two weeks so it would be very helpful to have a date in this situation.



Quote:
Originally Posted by vbe
look at the man pages!
Quote:
Originally Posted by System
man dmesg is also not helpful
;-(
Last edited by Franklin52; 03-19-2014 at 03:59 AM.. Reason: Please use code tags
# 13  
Old 03-19-2014
a thought - why not clear the messages everyday after storing it into a log file with current date? a cron should do.

---------- Post updated at 11:53 PM ---------- Previous update was at 11:48 PM ----------

I just noticed the logs are already rotated. Not sure if your system does it. Check these files
Code:
root@maximus:/tmp# ls -lrt /var/log/dmes*
-rw-r----- 1 root adm     28 Jan  8 09:39 /var/log/dmesg.4.gz
-rw-r----- 1 root adm  13463 Feb 17 00:53 /var/log/dmesg.3.gz
-rw-r----- 1 root adm  13376 Feb 17 19:41 /var/log/dmesg.2.gz
-rw-r----- 1 root adm  13544 Feb 19 19:57 /var/log/dmesg.1.gz
-rw-r----- 1 root adm  49431 Feb 23 12:36 /var/log/dmesg.0
-rw-r----- 1 root adm  49773 Mar  2 16:27 /var/log/dmesg

On a second thought I guess these are created either when the system boots up or shuts down.

---------- Post updated 03-19-14 at 12:00 AM ---------- Previous update was 03-18-14 at 11:53 PM ----------

Script log_dmesg
Code:
#!/bin/bash
echo "<< Log for $(date) >>" >> /var/log/mydmesg.log
dmesg >> /var/log/mydmesg.log
dmesg -C

Cron entry
Code:
0 0 * * * /path/to/your/script/log_dmesg

and may be include some log rotation logic if needed.
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