#!/bin/bash
set -e

filename="$1"
counter=0
start=$SECONDS
while read -r line
do
  value=$(echo $line | cut -d, -f10)
  counter=$((counter+1))
  if ! ((counter % 10000)); then
     duration=$((SECONDS-start))
     echo $start
     echo "Processed 10000 in "$duration" seconds"
  fi
done < "$filename"