[Bug 2142586] [NEW] date complains if +%F is not the last argument

[Mario Splivalo]

Public bug reported:

On Ubuntu 26.04 (tested on the latest lxc image as of today), date seems
to require +%F to be last argument provided.

ubuntu at res-datetest:~$ date +%F --utc
date: extra operand '--utc'
ubuntu at res-datetest:~$ date +%F -d '2000-10-01'
date: extra operand '-d'

While this is in line with what the date man page states, the date
behavior in Ubuntu Resolute breaks what was previously working.

The +%F argument could be placed anywhere in the argument list, even on
25.10:


ubuntu at que-datetest:~$ grep PRETTY /etc/os-release 
PRETTY_NAME="Ubuntu 25.10"
ubuntu at que-datetest:~$ date +%F --utc
2026-02-24
ubuntu at que-datetest:~$ date +%F -d '2000-10-01'
2000-10-01

mario at MP52 ~> grep PRETTY /etc/os-release
PRETTY_NAME="Ubuntu 24.04.3 LTS"
mario at MP52 ~> date +%F --utc
2026-02-24
mario at MP52 ~> date +%F -d '2000-10-01'
2000-10-01

mario at enchilada:~$ grep PRETTY /etc/os-release 
PRETTY_NAME="Ubuntu 22.04.5 LTS"
mario at enchilada:~$ date +%F --utc
2026-02-24
mario at enchilada:~$ date +%F -d '2000-10-01'
2000-10-01
mario at enchilada:~$ 

(I know this one is super obsolete; I just wanted to show how date behaved for a VERY long time.)
mario at pic:~$ grep PRETTY /etc/os-release 
PRETTY_NAME="Ubuntu 14.04.6 LTS"
mario at pic:~$ date +%F --utc
2026-02-24
mario at pic:~$ date +%F -d '2000-10-01'
2000-10-01

** Affects: rust-coreutils (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2142586

Title:
  date complains if +%F is not the last argument

Status in rust-coreutils package in Ubuntu:
  New

Bug description:
  On Ubuntu 26.04 (tested on the latest lxc image as of today), date
  seems to require +%F to be last argument provided.

  ubuntu at res-datetest:~$ date +%F --utc
  date: extra operand '--utc'
  ubuntu at res-datetest:~$ date +%F -d '2000-10-01'
  date: extra operand '-d'

  While this is in line with what the date man page states, the date
  behavior in Ubuntu Resolute breaks what was previously working.

  The +%F argument could be placed anywhere in the argument list, even
  on 25.10:

  
  ubuntu at que-datetest:~$ grep PRETTY /etc/os-release 
  PRETTY_NAME="Ubuntu 25.10"
  ubuntu at que-datetest:~$ date +%F --utc
  2026-02-24
  ubuntu at que-datetest:~$ date +%F -d '2000-10-01'
  2000-10-01

  mario at MP52 ~> grep PRETTY /etc/os-release
  PRETTY_NAME="Ubuntu 24.04.3 LTS"
  mario at MP52 ~> date +%F --utc
  2026-02-24
  mario at MP52 ~> date +%F -d '2000-10-01'
  2000-10-01

  mario at enchilada:~$ grep PRETTY /etc/os-release 
  PRETTY_NAME="Ubuntu 22.04.5 LTS"
  mario at enchilada:~$ date +%F --utc
  2026-02-24
  mario at enchilada:~$ date +%F -d '2000-10-01'
  2000-10-01
  mario at enchilada:~$ 

  (I know this one is super obsolete; I just wanted to show how date behaved for a VERY long time.)
  mario at pic:~$ grep PRETTY /etc/os-release 
  PRETTY_NAME="Ubuntu 14.04.6 LTS"
  mario at pic:~$ date +%F --utc
  2026-02-24
  mario at pic:~$ date +%F -d '2000-10-01'
  2000-10-01

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