GNU bug report logs - #61267
shuf -i with negative numbers

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Package: coreutils;

Reported by: <kpm <at> plan9.lol>

Date: Sat, 4 Feb 2023 07:46:02 UTC

Severity: normal

Tags: notabug

Done: Pádraig Brady <P <at> draigBrady.com>

Bug is archived. No further changes may be made.

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Report forwarded to bug-coreutils <at> gnu.org:
bug#61267; Package coreutils. (Sat, 04 Feb 2023 07:46:02 GMT) Full text and rfc822 format available.
Acknowledgement sent to <kpm <at> plan9.lol>:
New bug report received and forwarded. Copy sent to bug-coreutils <at> gnu.org. (Sat, 04 Feb 2023 07:46:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: <kpm <at> plan9.lol>
To: <bug-coreutils <at> gnu.org>
Subject: shuf -i with negative numbers
Date: Fri, 03 Feb 2023 23:31:06 +0100

hello

shuf -i option cannot handle negative numbers.
examples:
  $ shuf -i -10-20
  $ shuf -i 0--20

don't know if it's a bug or a feature.

:^)
~ kpm
Information forwarded to bug-coreutils <at> gnu.org:
bug#61267; Package coreutils. (Sat, 04 Feb 2023 12:10:01 GMT) Full text and rfc822 format available.

Message #8 received at 61267 <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: kpm <at> plan9.lol, 61267 <at> debbugs.gnu.org
Subject: Re: bug#61267: shuf -i with negative numbers
Date: Sat, 4 Feb 2023 12:09:25 +0000

tag 61267 notabug
close 61267
stop

comments below...

On 03/02/2023 22:31, kpm <at> plan9.lol wrote:
> hello
> 
> shuf -i option cannot handle negative numbers.
> examples:
>    $ shuf -i -10-20
>    $ shuf -i 0--20
> 
> don't know if it's a bug or a feature.

The input range needs to be unsigned
as documented in the info manual.
It should be easy enough to shift to the desired range,
for example:

  $ shiftn() { sed "s/\$/$1/" | bc; }
  $ shuf -i 0-10 | shiftn -5
  3
  -2
  0
  5
  2
  -5
  4
  -1
  -3
  1
  -4

cheers,
Pádraig
Added tag(s) notabug. Request was from Pádraig Brady <P <at> draigBrady.com> to control <at> debbugs.gnu.org. (Sat, 04 Feb 2023 12:10:02 GMT) Full text and rfc822 format available.
bug closed, send any further explanations to 61267 <at> debbugs.gnu.org and <kpm <at> plan9.lol> Request was from Pádraig Brady <P <at> draigBrady.com> to control <at> debbugs.gnu.org. (Sat, 04 Feb 2023 12:10:02 GMT) Full text and rfc822 format available.
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Sat, 04 Mar 2023 12:24:15 GMT) Full text and rfc822 format available.
This bug report was last modified 2 years and 169 days ago.

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