Re: Date of yesterday

On 2018-04-09, Paul de Weerd wrote: > On Sun, Apr 08, 2018 at 11:12:43PM -0700, Philip Guenther wrote: >| On Sun, Apr 8, 2018 at 10:54 PM, Robert Klein wrote: >| >| > this works for me: >| > >| > date -r $(( $(date +%s) - 1 * 24 * 60 * 60 )) +%Y_%m_%d >| >

Re: Date of yesterday

this will be my final answer - and which certainly does not want to be a polemic: No, at school I wasn't told about an'leap second', an intercalar second! But, I only went in third - some here will be able to tell you what this level is, personally I don't know the correspondence, with other

Re: Date of yesterday

On 04/09/18 13:58, Stephane HUC "PengouinBSD" wrote: Excuse-me, but i dont really understand this! (perhaps, because it's in english). If you don't understand how Daylight Savings time works, or how time works on computers in general, then you should just trust the expert advice offered to

Re: Date of yesterday

On 4/9/18 4:36 PM, Stephane HUC "PengouinBSD" wrote: > what? > > please, explain-me! EDT EST for example. Some days are even 82800 long. Some time zone even have 1/2 hour if these still exists, so the would be 84600 or 88200.

Re: Date of yesterday

2018-04-09 20:58 GMT+02:00 Stephane HUC "PengouinBSD" : > get the current timestamp, subtracting 86400 seconds is not reliable to > get yesterday's date to the nearest second? Did they teach leap seconds in your school yet? Best Martin

Re: Date of yesterday

Tom Smyth writes: > Howdy... > Daylight savings time sucks... :/... > Is there a way to Reference UTC and then do the calculating > n and then convert to local time zone if you are worried about > calculating yesterday on the edge case of the 2 hrs a year > that

Re: Date of yesterday

Here to confuse you even more, there is time zone that have 30 minutes and even 45 minutes differences. https://www.timeanddate.com/time/time-zones-interesting.html Have fun. On 4/9/18 4:44 PM, Daniel Ouellet wrote: > On 4/9/18 4:36 PM, Stephane HUC "PengouinBSD" wrote: >> what? >> >> please,

Re: Date of yesterday

On Mon, Apr 9, 2018 at 2:05 PM, Tom Smyth wrote: > Howdy... > Daylight savings time sucks... :/... > Is there a way to Reference UTC and then do the calculating > n and then convert to local time zone if you are worried about > calculating yesterday on the edge

Re: Date of yesterday

Excuse-me, but i dont really understand this! (perhaps, because it's in english). Le 04/09/18 à 22:45, Philip Guenther a écrit : > On Mon, Apr 9, 2018 at 1:36 PM, Stephane HUC "PengouinBSD" < > b...@stephane-huc.net> wrote: > >> what? >> >> please, explain-me! >> > As I wrote before, and you

Re: Date of yesterday

Howdy... Daylight savings time sucks... :/... Is there a way to Reference UTC and then do the calculating n and then convert to local time zone if you are worried about calculating yesterday on the edge case of the 2 hrs a year that this would make an impact... as a side issue would avoiding

Re: Date of yesterday

On Mon, Apr 9, 2018 at 1:36 PM, Stephane HUC "PengouinBSD" < b...@stephane-huc.net> wrote: > what? > > please, explain-me! > As I wrote before, and you quoted before: > | Did you test that after 11pm on the day when daylight-saving time ends and > | the clock is turned back, resulting in a 25

Re: Date of yesterday

> On 9 Apr 2018, at 16:34, Philip Guenther wrote: > > On Mon, Apr 9, 2018 at 11:58 AM, Stephane HUC "PengouinBSD" < > b...@stephane-huc.net> wrote: > >> get the current timestamp, subtracting 86400 seconds is not reliable to >> get yesterday's date to the nearest second? >>

Re: Date of yesterday

what? please, explain-me! Le 04/09/18 à 22:34, Philip Guenther a écrit : > On Mon, Apr 9, 2018 at 11:58 AM, Stephane HUC "PengouinBSD" > > wrote: > > get the current timestamp, subtracting 86400 seconds is not > reliable to > get

Re: Date of yesterday

On Mon, Apr 9, 2018 at 11:58 AM, Stephane HUC "PengouinBSD" < b...@stephane-huc.net> wrote: > get the current timestamp, subtracting 86400 seconds is not reliable to > get yesterday's date to the nearest second? > terrible! Yes, some days are 9 seconds long.

Re: Date of yesterday

get the current timestamp, subtracting 86400 seconds is not reliable to get yesterday's date to the nearest second? terrible! Le 04/09/18 à 20:48, Philip Guenther a écrit : > On Mon, Apr 9, 2018 at 2:04 AM, Stephane HUC "CIOTBSD" > wrote: > >> as: date -r $(( $(date +%s)

Re: Date of yesterday

On Mon, Apr 9, 2018 at 2:04 AM, Stephane HUC "CIOTBSD" wrote: > as: date -r $(( $(date +%s) - 86400)) +%F > ;) ... > > On Sun, Apr 08, 2018 at 11:12:43PM -0700, Philip Guenther wrote: > > | Did you test that after 11pm on the day when daylight-saving time ends > and > >

Re: Date of yesterday

as: date -r $(( $(date +%s) - 86400)) +%F ;) Le 04/09/18 à 10:26, Paul de Weerd a écrit : > On Sun, Apr 08, 2018 at 11:12:43PM -0700, Philip Guenther wrote: > | On Sun, Apr 8, 2018 at 10:54 PM, Robert Klein wrote: > | > | > this works for me: > | > > | > date -r $(( $(date

Re: Date of yesterday

'now -1 day' '+%Y_%m_%d' 2018_04_09 $ /bin/date -d 'yesterday' '+%Y_%m_%d' 2018_04_09 I don't know when it was imported into BSD's date, but this extension is available on OpenBSD, at least in 6.3... There is a -d option, but it does not do what you expect. What date is it now? Try other values

Re: Date of yesterday

On Mon, Apr 09, 2018 at 12:50:33PM +0200, Christophe Simon wrote: > The command I executed was run on OpenBSD: > > $ uname -a > OpenBSD XXX 6.3 GENERIC.MP#107 amd64 > > $ /bin/date -d 'now -1 day' '+%Y_%m_%d' > 2018_04_09 > > $ /bin/date -d 'yesterday' '+%Y_%m_%d

Re: Date of yesterday

The command I executed was run on OpenBSD: $ uname -a OpenBSD XXX 6.3 GENERIC.MP#107 amd64 $ /bin/date -d 'now -1 day' '+%Y_%m_%d' 2018_04_09 $ /bin/date -d 'yesterday' '+%Y_%m_%d' 2018_04_09 I don't know when it was imported into BSD's date, but this extension is available on OpenBSD

Re: Date of yesterday

Max Power <open...@cpnetserver.net> wrote: > > > > > Hi guys, > > > How can I do to get yesterday's date? > > > I need for create a backup directory. > > > On Linux: > > > yesterday=backup_$(date -d "yesterday" '+%Y_%m_%d') > > > mkdir -p /raid1/backup/$yesterday > > > > > > Thanks for reply. > > > > > > >

Re: Date of yesterday

+0200 Max Power <open...@cpnetserver.net> wrote: Hi guys, How can I do to get yesterday's date? I need for create a backup directory. On Linux: yesterday=backup_$(date -d "yesterday" '+%Y_%m_%d') mkdir -p /raid1/backup/$yesterday Thanks for reply.

Re: Date of yesterday

On Sun, Apr 08, 2018 at 11:12:43PM -0700, Philip Guenther wrote: | On Sun, Apr 8, 2018 at 10:54 PM, Robert Klein wrote: | | > this works for me: | > | > date -r $(( $(date +%s) - 1 * 24 * 60 * 60 )) +%Y_%m_%d | > | | Did you test that after 11pm on the day when

Re: Date of yesterday

On Sun, Apr 8, 2018 at 10:54 PM, Robert Klein wrote: > this works for me: > > date -r $(( $(date +%s) - 1 * 24 * 60 * 60 )) +%Y_%m_%d > Did you test that after 11pm on the day when daylight-saving time ends and the clock is turned back, resulting in a 25 hour long day? I

Re: Date of yesterday

ory. > On Linux: > yesterday=backup_$(date -d "yesterday" '+%Y_%m_%d') > mkdir -p /raid1/backup/$yesterday > > Thanks for reply. >

Date of yesterday

Hi guys, How can I do to get yesterday's date? I need for create a backup directory. On Linux: yesterday=backup_$(date -d "yesterday" '+%Y_%m_%d') mkdir -p /raid1/backup/$yesterday Thanks for reply.