Sorting using two field separators

[tolugboji]

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Sunday, October 17th, 2021 at 4:59 PM, tolugboji via <help-bash@gnu.org> 
wrote:

> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>
> On Sunday, October 17th, 2021 at 4:47 PM, Alex fxmbsw7 Ratchev 
> fxmbsw7@gmail.com wrote:
>
> > maybe go a sideway, convert the filenames batchly into has-one-sep, then 
> > sort, then change back
> >

I can use awk to use two field delimiters.  But this still requires a little 
tweak to
handle possibility of newlines.

find "$fdir" -type f -name "${fnam}-*.png" -print0 |
  awk -F'[-.]' '{print $(NF-1), $0}' |
  sort -znk 1,1 | cut -d ' ' -f2-