Bug report for "date"
Hi, Gives me correct date: [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+150 date Wed Jul 22 12:27:15 EDT 2009 Gives me incorrect date: [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+172 date Tue Jul 28 18:27:09 GMT 2009 Basically I cannot go back more than 6 days... Best, Paul ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
Re: Bug report for "date"
Paul Grinberg wrote: > Gives me correct date: > [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+150 date > Wed Jul 22 12:27:15 EDT 2009 > > Gives me incorrect date: > [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+172 date > Tue Jul 28 18:27:09 GMT 2009 > > Basically I cannot go back more than 6 days... You have specified an invalid timezone. Timezones are only defined from 0 through 23 hours 59 seconds which is sufficient to define all existing timezones. Please see the GNU C manual for a complete specification of the timezone using the TZ variable. http://www.gnu.org/software/coreutils/manual/libc.html#TZ-Variable The offset specifies the time value you must add to the local time to get a Coordinated Universal Time value. It has syntax like [+|-]hh[:mm[:ss]]. This is positive if the local time zone is west of the Prime Meridian and negative if it is east. The hour must be between 0 and 23, and the minute and seconds between 0 and 59. If you are trying to do math calculations using date then it is better to use date's relative time feature. $ date -R --date="-14 days" Tue, 14 Jul 2009 17:04:43 -0600 Bob ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
Re: Bug report for "date"
On Tue, 28 Jul 2009, Paul Grinberg wrote: Gives me correct date: [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+150 date Wed Jul 22 12:27:15 EDT 2009 Gives me incorrect date: [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+172 date Tue Jul 28 18:27:09 GMT 2009 Basically I cannot go back more than 6 days... According to the POSIX/glibc definition of TZ: http://www.opengroup.org/onlinepubs/95399/basedefs/xbd_chap08.html http://www.gnu.org/s/libc/manual/html_node/TZ-Variable.html the hour offset must be between 0 and 24. In other words, the examples above are undefined by the standards. Why are you trying to use TZ to concoct multi-day offsets? Cheers, Phil ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
RE: Bug report for "date"
On Tue, 28 Jul 2009, Paul Grinberg wrote: Shell script for SolarisIt can go future as long as I want, but past only 6 days http://www.isrcomputing.com/index.php?option=com_content&view=article&id=125:unix-shell-script-to-calculate-date-in-the-future-and-in-the-past&catid=38:technology-tips&Itemid=82 That script is using (/abusing) TZ beyond its stated purpose. As Bob suggests, GNU date can perform date calculations with relative offsets, e.g. $ date -d 'now + 12 days' Mon Aug 10 00:55:32 BST 2009 Cheers, Phil ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
RE: Bug report for "date"
Bob, Thank you for your reply. You are right, I am trying to calculate time backwardsit only allows 6 days back...i need 7 :) the whole week :) Unfortunately in solaris it does not work :((( # date -R --date="-14 days" date: illegal option -- R date: illegal option -- date=-14 days usage: date [-u] mmddHHMM[[cc]yy][.SS] date [-u] [+format] date -a [-]sss[.fff] Thanks, Paul -Original Message- From: Bob Proulx [mailto:b...@proulx.com] Sent: Tuesday, July 28, 2009 7:08 PM To: Paul Grinberg Cc: bug-coreutils@gnu.org Subject: Re: Bug report for "date" Paul Grinberg wrote: > Gives me correct date: > [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+150 date > Wed Jul 22 12:27:15 EDT 2009 > > Gives me incorrect date: > [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+172 date > Tue Jul 28 18:27:09 GMT 2009 > > Basically I cannot go back more than 6 days... You have specified an invalid timezone. Timezones are only defined from 0 through 23 hours 59 seconds which is sufficient to define all existing timezones. Please see the GNU C manual for a complete specification of the timezone using the TZ variable. http://www.gnu.org/software/coreutils/manual/libc.html#TZ-Variable The offset specifies the time value you must add to the local time to get a Coordinated Universal Time value. It has syntax like [+|-]hh[:mm[:ss]]. This is positive if the local time zone is west of the Prime Meridian and negative if it is east. The hour must be between 0 and 23, and the minute and seconds between 0 and 59. If you are trying to do math calculations using date then it is better to use date's relative time feature. $ date -R --date="-14 days" Tue, 14 Jul 2009 17:04:43 -0600 Bob ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
RE: Bug report for "date"
Shell script for SolarisIt can go future as long as I want, but past only 6 days http://www.isrcomputing.com/index.php?option=com_content&view=article&id =125:unix-shell-script-to-calculate-date-in-the-future-and-in-the-past&c atid=38:technology-tips&Itemid=82 Best, Paul -Original Message- From: Philip Rowlands [mailto:p...@doc.ic.ac.uk] Sent: Tuesday, July 28, 2009 7:40 PM To: Paul Grinberg Cc: bug-coreutils@gnu.org Subject: Re: Bug report for "date" On Tue, 28 Jul 2009, Paul Grinberg wrote: > Gives me correct date: > > [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+150 date > Wed Jul 22 12:27:15 EDT 2009 > > Gives me incorrect date: > [ctpsmg11-dcdhealth@/opt/app/dcdhealth] # TZ=EDT+172 date > Tue Jul 28 18:27:09 GMT 2009 > > Basically I cannot go back more than 6 days... According to the POSIX/glibc definition of TZ: http://www.opengroup.org/onlinepubs/95399/basedefs/xbd_chap08.html http://www.gnu.org/s/libc/manual/html_node/TZ-Variable.html the hour offset must be between 0 and 24. In other words, the examples above are undefined by the standards. Why are you trying to use TZ to concoct multi-day offsets? Cheers, Phil ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
RE: Bug report for "date"
Phil, As I said...it is a workaround, since ins Solaris you cannot execute that command: # date -R --date="-14 days" date: illegal option -- R date: illegal option -- date=-14 days usage: date [-u] mmddHHMM[[cc]yy][.SS] date [-u] [+format] date -a [-]sss[.fff] Best, Paul -Original Message- From: Philip Rowlands [mailto:p...@doc.ic.ac.uk] Sent: Tuesday, July 28, 2009 7:56 PM To: Paul Grinberg Cc: bug-coreutils@gnu.org Subject: RE: Bug report for "date" On Tue, 28 Jul 2009, Paul Grinberg wrote: > Shell script for SolarisIt can go future as long as I want, but past > only 6 days > > http://www.isrcomputing.com/index.php?option=com_content&view=article&id =125:unix-shell-script-to-calculate-date-in-the-future-and-in-the-past&c atid=38:technology-tips&Itemid=82 That script is using (/abusing) TZ beyond its stated purpose. As Bob suggests, GNU date can perform date calculations with relative offsets, e.g. $ date -d 'now + 12 days' Mon Aug 10 00:55:32 BST 2009 Cheers, Phil ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
Re: Bug report for "date"
Paul Grinberg wrote: > Thank you for your reply. You are right, I am trying to calculate time > backwardsit only allows 6 days back...i need 7 :) the whole week :) > > Unfortunately in solaris it does not work :((( Well, this is the mailing list for the GNU system's date and so you wouldn't expect us to suggest anything other than that perhaps you might consider switching to the GNU system. It works there! :-) > # date -R --date="-14 days" > date: illegal option -- R > date: illegal option -- date=-14 days > usage: date [-u] mmddHHMM[[cc]yy][.SS] > date [-u] [+format] > date -a [-]sss[.fff] Well, that isn't the GNU date so there isn't anything that we can say here that will help you there. Good luck! Do you have Perl, Python or Ruby? You might try doing date calculations using Perl and the Date::Calc library. Bob ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
RE: Bug report for "date"
Perl is my friend :))) Best, Paul -Original Message- From: Bob Proulx [mailto:b...@proulx.com] Sent: Tuesday, July 28, 2009 8:29 PM To: Paul Grinberg Cc: bug-coreutils@gnu.org Subject: Re: Bug report for "date" Paul Grinberg wrote: > Thank you for your reply. You are right, I am trying to calculate time > backwardsit only allows 6 days back...i need 7 :) the whole week :) > > Unfortunately in solaris it does not work :((( Well, this is the mailing list for the GNU system's date and so you wouldn't expect us to suggest anything other than that perhaps you might consider switching to the GNU system. It works there! :-) > # date -R --date="-14 days" > date: illegal option -- R > date: illegal option -- date=-14 days > usage: date [-u] mmddHHMM[[cc]yy][.SS] > date [-u] [+format] > date -a [-]sss[.fff] Well, that isn't the GNU date so there isn't anything that we can say here that will help you there. Good luck! Do you have Perl, Python or Ruby? You might try doing date calculations using Perl and the Date::Calc library. Bob ___ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
