#!/bin/bash

cp /var/www/practiceGraph/prac_data.dat /tmp/
mv /var/www/practiceGraph/prac_accumulated.dat /var/www/practiceGraph/prac_accumulated.old

awk '{x=x+$2+$3+$4+$5; print $1,x+4218}' /tmp/prac_data.dat > /var/www/practiceGraph/prac_accumulated.dat