I tend to agree, not only for date parsing, but plain "language"
parsing, it's best to force LC_ALL=C before running whatever tool you
want to inspect the output of. I can add a release notes task to this
and update them.
** Also affects: ubuntu-release-notes
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1858883
Title:
date utility format unexpectedly changed after upgrade from bionic to
focal
Status in Release Notes for Ubuntu:
New
Status in coreutils package in Ubuntu:
New
Bug description:
After upgrading my Bionic system to Focal, I noticed a significant
change in the output of the `date` utility. This could potentially
cause regressions for those who are relying on a consistent date
format when using `date` in shell scripts.
EXPECTED BEHAVIOR
=================
I expected to see the same date format that can be seen on Ubuntu
releases (at least) from Trusty through Bionic:
$ date -u
Wed Jan 8 21:00:14 UTC 2020
ACTUAL BEHAVIOR
===============
On Focal (and Eoan) the following date format is seen by default:
$ date -u
Wed 08 Jan 2020 09:00:14 PM UTC
Note the differences in zero-padding, whitespace, placement of the
year, and the extraneous "PM" (I had expected to see a 24-hour time).
FURTHER DETAILS
===============
This machine was originally on Bionic and has been upgraded to
development releases between Bionic and Focal.
$ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
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