bug#33371: RFC: option for numeric sort: ignore-non-numeric characters

[Erik Auerswald]

Hi,

On Tue, Nov 13, 2018 at 06:32:55PM -0800, L A Walsh wrote:
> I have a bunch of files numbered from 1-over 2000 without leading zeros
> (think rfc's)...
> They have names with a non-numeric prefix & suffix around the number.

Are prefix and suffix constant? RFC files are usually named rfc${NR}.txt.

> It would be nice if sort had the option to ignore non-numeric
> data and only sort on the numeric data in the 'lines'/'files'.

Perhaps --version-sort could work for you?

$ for r in rfc{1..100}.txt; do echo "$r"; done | sort | sort -V

(The first sort un-sorts the sorted input data, the seconds sorts it
again.)

> [...]
> Or is there an options for this already, and my manpage out of date?

AFAIK not exactly.

Thanks,
Erik
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