Why not use File::Find::find's preprocess option? Something along the lines of 

File::Find::find({preprocess=>sub { 
                      return sort {uc $a cmp uc $b} @_ 
                       }, 
                  wanted=>sub {
                      return if (-d);
                      say $_;
                       }
                 },@ARGV);

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In reply to Re: Something like File::Find with sorting by clueless newbie
in thread Something like File::Find with sorting by Doctrin

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