bug#51011: [GNU sort] Numerical sort with delimiter may be broken (bug)

[Davide Brini]

On Mon, 4 Oct 2021 10:36:52 -0400, Juncheng Yang
<peter.waynechina@gmail.com> wrote:

> Hi coreutils developers,
>     I have encountered a bug in GNU sort in which sort produces incorrect
> results when numerical sort with delimiters. For example, sort -nk1 -t ,
> file cannot sort the a file with the following lines (sort by the first
> column numerically)
> 1,a
> 0,9
>
> I have tried multiple version including the latest version, this problem
> still exists.

Works for me with

sort -t, -k1,1n

Keep in mind that with just "-k1" you're effectively telling sort to
consider fields from the first up to the last (ie the whole line), not just
the first one.


--
D.