date addition in bash doesn't work. Can someone explain why?












0















I have followed examples on numerous stack exchange websites and various other tutorial websites on how to do date math. I have tried linux (on containers) I get the exact same error:



$ docker run -it bash date -d '2014-11-19T15:40:30+10d'
date: invalid date '2014-11-19T15:40:30+10d'


bash version:



$ docker run -it bash bash --version
GNU bash, version 5.0.2(1)-release (x86_64-pc-linux-musl)
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.


I've tried this post
This post and this post and even this random website



They can't all be wrong.









share



























    0















    I have followed examples on numerous stack exchange websites and various other tutorial websites on how to do date math. I have tried linux (on containers) I get the exact same error:



    $ docker run -it bash date -d '2014-11-19T15:40:30+10d'
    date: invalid date '2014-11-19T15:40:30+10d'


    bash version:



    $ docker run -it bash bash --version
    GNU bash, version 5.0.2(1)-release (x86_64-pc-linux-musl)
    Copyright (C) 2019 Free Software Foundation, Inc.
    License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

    This is free software; you are free to change and redistribute it.
    There is NO WARRANTY, to the extent permitted by law.


    I've tried this post
    This post and this post and even this random website



    They can't all be wrong.









    share

























      0












      0








      0








      I have followed examples on numerous stack exchange websites and various other tutorial websites on how to do date math. I have tried linux (on containers) I get the exact same error:



      $ docker run -it bash date -d '2014-11-19T15:40:30+10d'
      date: invalid date '2014-11-19T15:40:30+10d'


      bash version:



      $ docker run -it bash bash --version
      GNU bash, version 5.0.2(1)-release (x86_64-pc-linux-musl)
      Copyright (C) 2019 Free Software Foundation, Inc.
      License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

      This is free software; you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.


      I've tried this post
      This post and this post and even this random website



      They can't all be wrong.









      share














      I have followed examples on numerous stack exchange websites and various other tutorial websites on how to do date math. I have tried linux (on containers) I get the exact same error:



      $ docker run -it bash date -d '2014-11-19T15:40:30+10d'
      date: invalid date '2014-11-19T15:40:30+10d'


      bash version:



      $ docker run -it bash bash --version
      GNU bash, version 5.0.2(1)-release (x86_64-pc-linux-musl)
      Copyright (C) 2019 Free Software Foundation, Inc.
      License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

      This is free software; you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.


      I've tried this post
      This post and this post and even this random website



      They can't all be wrong.







      bash





      share












      share










      share



      share










      asked 1 min ago









      Christian BongiornoChristian Bongiorno

      185210




      185210






















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