gistfile1.txt

find .   -type f   -print0 | xargs -0 ls -l | awk '{print $5}' | \
awk '
#! /bin/env awk
  # PWLF Interpolation function, take a value, and two arrays for X & Y
function pwlf(x, ny) {
  return ny[int(length(ny) * x) / 100]
}

  # Read f Input in yy array, setup xx
{ yy[n] = $1  ; n++ }

  # Print the table
END {
  # Sort values of yy
  ny = asort(yy) ;

  # Prepare list of requested results
  ns = split("99 97 95 90 80 70 60 50 40 30 20 10 5 3 1", pv)
  for (i=1 ; i<=ns ; i++) printf "%dth %d\n",  pv[i], pwlf(pv[i], yy) ;
}
'