#! /usr/bin/gawk -f
# Last edited on 2015-06-02 12:32:09 by stolfilocal

BEGIN { 
  UpS_LO = 99999999.99; 
  UpS_HI = 0.00; 
  VSHR = 0; 
  VUSD = 0; 
  NTr = 0;
} 

/[:]/ { 
  UpS_TR = $2;
  VSHR_TR = $3;
  NTr++;
  VUSD += VSHR_TR*UpS_TR; 
  VSHR += VSHR_TR;
  if (UpS_TR < UpS_LO) { UpS_LO = UpS_TR; }
  if (UpS_TR > UpS_HI) { UpS_HI = UpS_TR; }
} 

END { 
  VBTC = VSHR/10;
  UpS = VUSD/VSHR;
  UpB = UpS*10;
  printf "Date ! ! ! NTr ! UpS_LO ! UpS_HI ! VSHR ! VBTC ! VUSD ! UpS ! UpB ! OBS\n"; 
  printf "2015-- | | | %d | %.3f | %.3f |%d | %.1f | %.2f | %.5f | %.4f | \n", NTr, UpS_LO, UpS_HI, VSHR, VBTC, VUSD, UpS, UpB; 
}