Help for this page
dir-100-1 dir-100-10 dir-100-2 dir-100-9 dir-100-99 dir-2-1 dir- +28-1 dir-29-1 dir-29-2 dir-30-1 dir-3-1
dir-100-99 dir-100-10 ... dir-28-1 dir-3-1 dir-2-1
ls -d ./dir-* | xargs perl -e'print ((sort {$b->[0] <=> $a->[0] || $b- +>[1] <=> $a->[1] } map { m|/dir-(\d+)-(\d+)|; [$1,$2,$_] } @ARGV)[1]- +>[2])'