AWK Awesome

count_group_by_datetime.awk

{
  date = $1
  hour = substr($2,1,2)
  group[date, hour]++
}END{
  print "Date" "\t\t" "Hour" "\t" "Total"
  print "====" "\t\t" "====" "\t" "======"
  for (item in group) print substr(item, 1, 10) "\t" substr(item, 11, 3) "\t", group[item]
}

wrk_processor.awk

BEGIN { 
    print "Metric" "\t\t" "Avg" "\t\t" "Max" "\t\t" "SD +/-";
    print "======" "\t\t" "===" "\t\t" "===" "\t\t" "======";
}
{
  if (NR > 3 && NR < 6) {
    print $2 "		" $3 "		" $5 "\t\t" $6;
  }
  else if (NR == 6) {
    print "";
    print $2; 
  }
  else if (NR > 6) {
    print $0;
  }
}