I am really struggling with my hwclock since the UK changed to British Summer Time (BST) last weekend on my Centos 5.8 KVM guest.
Here's some command outputs..
[root#host ~]# TZ=Europe/London date
Mon Apr 2 08:12:03 EDT 2012
[root#host ~]# TZ=Europe/Jersey date
Mon Apr 2 08:12:11 EDT 2012
[root#host ~]# TZ=Europe/Paris date
Mon Apr 2 14:12:16 CEST 2012
[root#host ~]# TZ=Europe/Rome date
Mon Apr 2 14:12:22 CEST 2012
[root#host ~]# TZ=Europe/Athens date
Mon Apr 2 15:12:27 EEST 2012
[root#host ~]# hwclock -rD
hwclock from util-linux-2.13-pre7
Using /dev/rtc interface to clock.
Last drift adjustment done at 1333367010 seconds after 1969
Last calibration done at 1333367010 seconds after 1969
Hardware clock is on UTC time
Assuming hardware clock is kept in UTC time.
Waiting for clock tick...
/dev/rtc does not have interrupt functions. Waiting in loop for time from /dev/rtc to change
...got clock tick
Time read from Hardware Clock: 2012/04/02 12:22:27
Hw clock time : 2012/04/02 12:22:27 = 1333369347 seconds since 1969
Mon 02 Apr 2012 12:22:27 PM UTC -0.422061 seconds
And finally when I ln -sf to Europe/London it just goes back to EDT :(
[root#host ~]# ln -sf /usr/share/zoneinfo/Europe/London /etc/localtime
[root#host ~]# date
Mon Apr 2 08:23:02 EDT 2012
:(
Here's also some contents of files:
[root#host ~]# cat /etc/sysconfig/clock
ZONE="Europe/London"
UTC=true
ARC=false
Really struggling here guy and have googled til my eyes popped out but to no avail.
smybolically linking the files doesn't work - they need to be physically copied
[root#xxx]# mv /etc/localtime /etc/localtime.default
[root#xxx]# cp /usr/share/zoneinfo/Europe/London /etc/localtime
[root#xxx]# date
Fri Apr 13 11:35:57 BST 2012
Hope that helps :-)
I had a similar problem on my mailserver runninng CentOS 6.4 64-bit. Mail coming in marked 6 hours forward in time! I set Oslo-time for the server. The clock was correct but it showed the wrong time zone. It should be CEST:
/etc/localtime -> /usr/share/zoneinfo/Europe/Oslo
$date
Thu Sep 19 17:08:42 EDT 2013
Cities in the same time zone showed CEST. Strange. The only way to fix it was to use Copenhagen instead.
localtime -> /usr/share/zoneinfo/Europe/Copenhagen
$ date
Thu Sep 19 17:16:55 CEST 2013
So if nothing works try to use a city in the same time zone.
Related
I need to extract the logs between two timestamps from a file in Unix. I basically kind of need those logs to be copied and output in a different file so that I can copy them.
Is there an efficient way to do this? The log format looks like this - The timestamp is in a separate line from the actual logs.
Tue 21 Apr 14:00:00 GMT 2020
{"items":[{"cpu.load": "0.94","total.memory": "6039.798 MB","free.memory": "4367.152 MB","used.memory": "1672.646 MB","total.physical.system.memory": "16.656 GB","total.free.physical.system.memory": "3860.197 MB","total.used.physical.system.memory": "12.796 GB","number.of.cpus": "8"}]}
Tue 21 Apr 18:00:00 GMT 2020
{"items":[{"cpu.load": "0.76","total.memory": "6039.798 MB","free.memory": "4352.656 MB","used.memory": "1687.142 MB","total.physical.system.memory": "16.656 GB","total.free.physical.system.memory": "3858.203 MB","total.used.physical.system.memory": "12.798 GB","number.of.cpus": "8"}]}
I am doing this but it only prints out the timestamp and not the actual logs
cat file.txt | awk -F, '{ if ($1>"Fri 21 Aug 14:00:00 GMT 2020" && $1<"Sat 22 Aug 18:00:00 GMT 2020") print }'
Can someone advice.
Trying to replace moment.js in my Angular application with Luxon to reduce bundle size.
I have come across a case where the two libraries produce a different output, and I am not sure why.
moment.js produces a date that is one hour ahead.
const activeToDateTimeString = '2014-08-06T13:07:04';
let foo1 = moment(activeToDateTimeString).utcOffset(-5, true);
let foo2 = DateTime.fromISO(activeToDateTimeString, {zone: 'America/New_York'}).setZone('America/New_York', { keepLocalTime: true });
let foo3 = DateTime.fromJSDate(new Date(activeToDateTimeString)).setZone('America/New_York', { keepLocalTime: true });
let foo4 = DateTime.fromISO(activeToDateTimeString).setZone('America/New_York', { keepLocalTime: true });
console.log(foo1.toDate());
console.log(foo2.toJSDate());
console.log(foo3.toJSDate());
console.log(foo4.toJSDate());
Output:
Wed Aug 06 2014 14:07:04 GMT-0400 (Eastern Daylight Time)
Wed Aug 06 2014 13:07:04 GMT-0400 (Eastern Daylight Time)
Wed Aug 06 2014 13:07:04 GMT-0400 (Eastern Daylight Time)
Wed Aug 06 2014 13:07:04 GMT-0400 (Eastern Daylight Time)
Why does moment.js produce a different output in this case?
let foo1 = moment(activeToDateTimeString).utcOffset(-4, true);
This would correct your code, but as you're moving to Luxon the daylight time changes won't effect you in the future.
Right now (19 mar 2020) New York is 4 hours behind UTC as from the 8th March 2020 it entered Eastern Daylight Time from Eastern Standard Time.
If New York was in Eastern Standard Time at the moment your code would output the same times.
I am saving my date like this in my mongo database:
Thu Oct 25 2018 17:30:03 GMT+0300 (EAT)
I would like to use moment.js to have in the front end like 1 hour ago or 3 hours ago. How would I go about this?
If you're using single locale try
moment('Thu Oct 25 2018 17:30:03 GMT+0300').fromNow(); //eg. 1 day ago, 2 hours ago etc
or
moment('Thu Oct 25 2018 17:30:03 GMT+0300').fromNow(true); //eg. 1 day, 2 hours
for more see docs
and:
you can add your date and then compare with the current time:
const timestamp = moment(dateFromDatabase, 'ddd MMM DD YYYY HH:mm:ss GMT Z').fromNow();
or you can also use diff()
const timestamp = moment(dateFromDatabase, 'ddd MMM DD YYYY HH:mm:ss GMT Z').diff(Date.now(), 'hours');
you can change the measurements using years, months, weeks, days, hours, minutes, and seconds.
For more information, you can take a look on here.
I can't figure out what I am doing wrong here.
Passing in a string to moment, with the format and calling .toDate().
toDate() ends up returning a time that is off by 1 hour
moment("2015-11-19T18:34:00-07:00", "YYYY-MM-DDTHH:mm:ssZ").toDate()
> Thu Nov 19 2015 17:34:00 GMT-0800 (PST)
The time should be 18:34, not 17:34. The timezone is showing -08, when it should be showing -07
How can I search for lines in a file and extract the lines above and below lines of the searched line .
My input is like
Tue Jun 26 14:59:46 2012
Warning ffffffff act_msg_ctms_remove_from_pending_queue: deleting message 44817201 from the queue.
Tue Jun 26 14:59:46 2012
Warning ffffffff Finishing processing record number 44817201
Tue Jun 26 14:59:46 2012
Warning 5000000 activity_queue_manager_finish_cb: unknown activity 120.
Tue Jun 26 14:59:46 2012
Warning ffffffff Activity State Machine priority (2) finished
Tue Jun 26 14:59:46 2012
Warning ffffffff
====================================================
Processing database file "INCOMING_MESSAGES" record number 47810234 from user "(unknown)"
Tue Jun 26 14:59:46 2012
Warning ffffffff ACTIVITY data: rec_num (47810234) size (116)
Tue Jun 26 14:59:46 2012
Warning ffffffff activity status: ACT_SENT
Tue Jun 26 14:59:46 2012
Warning ffffffff MESSAGE body "MVT
QFA6673/26.VHQOS.BNE
EA0541
"
Tue Jun 26 14:59:46 2012
Warning ffffffff Finishing processing record number 47810234
Tue Jun 26 14:59:46 2012
Warning ffffffff Activity State Machine priority (1) finished
Tue Jun 26 14:59:46 2012
Warning ffffffff
End processing record number 47810234
====================================================
And I require my output to be like
/
Tue Jun 26 14:59:46 2012
Warning ffffffff MESSAGE body "MVT
QFA6673/26.VHQOS.BNE
EA0541"
/
My search string would be MVT.
Pls help
For three lines before and after the match
grep -C 3 pattern filename
For more control on number of after and before lines to be displayed for a match, use
grep -A (num of after) -B (num of lines before) pattern filename
From man grep:
-A NUM, --after-context=NUM
Print NUM lines of trailing context after matching lines.
Places a line containing -- between contiguous groups of matches.
-a, --text
Process a binary file as if it were text;
this is equivalent to the --binary-files=text option.
-B NUM, --before-context=NUM
Print NUM lines of leading context before matching lines.
Places a line containing -- between contiguous groups of matches.
-C NUM, --context=NUM
Print NUM lines of output context.
Places a line containing -- between contiguous groups of matches.
Grep has options to display rows immediately before and after the match. The numbers in the command line below are the appropriate number of rows to display, after and before the match. E.g.
grep -A3 -B5 yoursearchpattern inputfilepattern
man grep is useful for details about the options.
Assuming you have GNU grep, to check you can use --version option:
> grep --version
GNU grep 2.6.3