Linux froze and got back working 5 days later, no reboot.
Hello my friends,
I've come across the weirdest of glitches.
I'm running a simple weather monitor (just temperature) on a Raspbeery Pi 3B (Raspbian Linux 4.14.98-v7+). It has a 3G modem that sends out simple packets to my server at home.
On june 5th I lost remote access to the device. Since it is located somewhere difficult to physically access, I couldn't manually reboot it.
To my surprise, on June 10th it got back to life. It has not registered a reboot! Here's the weird excerpt from the log at /var/log/messages:
It's as if the operating system froze for some reason and suddenly got back working 5 days later! Absolutely no reboot registered.
I have absolutely no other log.
Does anyone know what could have happened there?
Last edited by jim mcnamara; 07-03-2019 at 11:23 PM..
Hi all,
I have 3 Sun v490's running Solaris 10. Each one has 2 zones on it. I changed the IP address and configuration on them this weekend, where ce0 was once the primary IP nic, now ce2 is. Previously, ce0 and ce4 were set up with IP multipathing, but I tried to remove that by changing the... (2 Replies)
Hi There,
Can you help me writing an unix script which tells me number of working days between two dates. say d1 and d2. The answer should be Integer.
is it possible in Unix.
cheers, (1 Reply)
Hi,
Could you please let me know the command to change my date /time beyond few days back. Currently when i am trying the below commands able to go beyond one day at max.
-->date
-->Mon Sep 29 19:31:58 EST 2008
-->export TZ=TMP40:00:00 (Changing the date beyond 40 hours)
-->Sun Sep 28... (4 Replies)
back in the good old 7.07 ghostscript days...
we had Great results converting pdf to ps output, from the following command:
cat $stuff | /usr/local/bin/gs -sDEVICE=ljet4 -q -dNOPAUSE -r200 -sPAPERSIZE=letter -dPDFFitPage -dBATCH -sOutputFile=- - 2> /dev/null | /usr/bin/lp -d $printer
... (3 Replies)
i need help! can someone help me please?
i try to calculate date under unix (ksh)...AIX operating system.
I have to find the date 200 days from today's date.
then the script should loop 200 times and display on command line every day's date until the current date.
example:
todays date:... (1 Reply)
i need help! can someone help me please?
i try to calculate date under unix (ksh)...AIX operating system.
I have to find the date 200 days from today's date.
then the script should loop 200 times and display on command line every day's date until the current date.
example:
todays date:... (4 Replies)
I installed bos.cifs_fs, bos.loc.iso.ko_KR, X11.fnt.ucs.ttf_KR, X11.fnt.ksc5601.ttf on p520 express, AIX 5.3
and upgraded the system from 5.3 TL7 SP? to 5.3 TL7 SP10
and rebooted the system.
During the boot, the system print error messages below (green text)
exec(): 0509-036 Cannot load... (2 Replies)
I have 3 variables , $file =abc_2011_11_01.txt (current day file), $back = Yes and $forward = No
I need to search for 3 days back files / 3 days forward files if my current file is not present
logic is,
I need to download the current day file.
If it is missing, i need to look out for currentday... (4 Replies)
Hi guys i need advice on the approach to this one......
I have a file say called
Thisfile.20130524.txt
i need to work out from the date 20130524 what day of the week that was and then process the file in 3 working days. (so not counting saturday or sunday....(will not worry about bank... (2 Replies)
Discussion started by: twinion
2 Replies
LEARN ABOUT DEBIAN
algorithm::checkdigits::m10_003
CheckDigits::M10_003(3pm) User Contributed Perl Documentation CheckDigits::M10_003(3pm)NAME
CheckDigits::M10_003 - compute check digits for ISMN
SYNOPSIS
use Algorithm::CheckDigits;
$ismn = CheckDigits('ismn');
if ($ismn->is_valid('M-345-24680-5')) {
# do something
}
$cn = $ismn->complete('M-345-24680');
# $cn = 'M-345-24680-5'
$cd = $ismn->checkdigit('M-345-24680-5');
# $cd = '5'
$bn = $ismn->basenumber('M-345-24680-5');
# $bn = 'M-345-24680'
DESCRIPTION
ALGORITHM
1. The 'M' as the first number gets the value 3. Beginning left all numbers are weighted alternatively 3 and 1.
2. The sum of all products is computed.
3. The sum of step 3 ist taken modulo 10.
4. The check digit is the difference between 10 and the number from step 3 taken modulo 10.
METHODS
is_valid($number)
Returns true only if $number consists solely of numbers and the last digit is a valid check digit according to the algorithm given
above.
Returns false otherwise,
complete($number)
The check digit for $number is computed and concatenated to the end of $number.
Returns the complete number with check digit or '' if $number does not consist solely of digits and spaces.
basenumber($number)
Returns the basenumber of $number if $number has a valid check digit.
Return '' otherwise.
checkdigit($number)
Returns the checkdigit of $number if $number has a valid check digit.
Return '' otherwise.
EXPORT
None by default.
AUTHOR
Mathias Weidner, <mathias@weidner.in-bad-schmiedeberg.de>
SEE ALSO
perl, CheckDigits, www.pruefziffernberechnung.de.
perl v5.10.0 2008-05-17 CheckDigits::M10_003(3pm)