CODEWITHSUNDEEP
linuxshelldateubuntu
Thomas Larsson
Thomas Larsson

Reputation: 707

linux date validation difference between ubuntu and centos

The following works on my Ubuntu machine

$ date -d 2014-07-23T00:00Z

ons 23 jul 2014 02:00:00 CEST

While on another machine running centos I get

$ date -d 2014-07-23T00:00Z

date: invalid date `2014-07-23T00:00Z'

From running

date --version

I can see that the version of gnu coreutils are 8.21 on Ubuntu and 8.4 on the centos machine.

My question is this: Is it due to differences in date functionality that this happens, or does it have to do with somehing else (like the locale, which I have played with a bit without success)?

If it is due to differences in date functionality, where can I read about these updates?

Upvotes: 4

Views: 185

Answers (1)

Martin Tournoij
Martin Tournoij

Reputation: 27822

From the NEWS file:

* Noteworthy changes in release 8.13 (2011-09-08) [stable]

[..trim..]

** New features

  date now accepts ISO 8601 date-time strings with "T" as the
  separator.  It has long parsed dates like "2004-02-29 16:21:42"
  with a space between the date and time strings.  Now it also parses
  "2004-02-29T16:21:42" and fractional-second and time-zone-annotated
  variants like "2004-02-29T16:21:42.333-07:00"

So, it's a feature available in GNU Coreutils 8.13 and newer.

This entry should also give you an answer on how to fix your string so that it works for both platforms :-)

Upvotes: 1

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