sort order.... whatever it means.. about nnn HOT 2 CLOSED

It's in the wiki. You should be willing to read it.
Also, au and du are pretty standard terms though you seem unfamiliar.

Program options, 4th Note: https://github.com/jarun/nnn/wiki/Usage#program-options

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@jarun Thanks for the answer and for this great tool, nnn. I use it a lot. Still I agree with the issue opener in that I also found it confusing. When I press t, it shows me 'a'u/'d'u/'e'xt/'r'ev/'s'z/'t'm/'v'er/'c'lr/'^T'?. nnn is v4.9. In man nnn, I found

     -T key
             sort order
             keys: 'a'u / 'd'u / 'e'xtension / 'r'everse / 's'ize / 't'ime / 'v'ersion
             capitalize to reverse (except 'r')
...
         NOTE: Sort keys can be a/d/e/r/s/t/v (see program option -T).
               Capitalize to reverse (except 'r').

which misses 'c'lr and '^T', it doesn't answer what is 'a'u, 'd'u

At https://github.com/jarun/nnn/wiki/Usage#program-options, I read

The keys for option -T are apparent disk usage / disk usage / extension / revision / size / time / version. Capitalize to reverse (except r).

which clears the latter two questions, 'a'u, 'd'u.

So I guess we might improve it by:

• Expand those abbreviations when we press 't' or
• Write full names in man nnn

Going to github wiki might be overhead for such a tiny thing. Thanks

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