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From: Janis Papanagnou <janis_papanagnou+ng@hotmail.com>
Newsgroups: comp.unix.shell
Subject: Re: Numerically sorted arguments (in shell)
Date: Thu, 20 Jun 2024 06:34:02 +0200
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On 19.06.2024 17:06, Chris Elvidge wrote:
> On 19/06/2024 at 14:11, Janis Papanagnou wrote:
>>> [...]
>>
>> I tried the approach I outlined above... (here just echo'ing the
>> created parts)...
>>
>>
>> N=${1:-1}
>> sed_a="[^0-9]*\([0-9]\+\)[^0-9]*"
>> sed_r="\1\t"
>> sort_a="-k1n"
>> for (( n=2; n<=N; n++ ))
>> do
>>      sed_a+="\([0-9]\+\)[^0-9]*"
>>      sed_r+="\\${n}\t"
>>      sort_a+=" -k${n}n"
>> done
>> cut_a="-f$((N+1))-"
>>
>> echo "# The following commands would be connected by pipes:"
>> echo "sed 's/${sed_a}/${sed_r}&/'"
>> echo "sort -t$'\t' ${sort_a}"
>> echo "cut ${cut_a}"
>>
> 
> Your way is still restricted to filenames with a known number of sets of
> digits, though (AFAICS). I.e. you pass N rather than finding it.

Yes. Above is just a codified version of the method I described
(thus also the echo's). Whether it's provided as parameter N or
obtained, say, from one of the files is left unanswered. Myself
I'd prefer some solution where even file sets with mixed amounts
of numerical parts may be used; thus being able to handle lists
that are named like chapters, like  1, 1.1, 1.2, ..., 5.3.3

Slowly and continuously approaching the goal... :-)

Janis

> [...]