#!/bin/sh
while [ 1 == 1 ]
do
for i in $(cat pid.txt)
do
pid=$i
cpu_core=$(grep -c processor /proc/cpuinfo)
total_time1=$(awk '{if ($1 == "cpu") {sum = $2 + $3 + $4 + $5 + $6 + $7 + $8 + $9 + $10 + $11;print sum}}' /proc/stat)
cpu_time1=$(awk '{sum=$14 + $15;print sum}' /proc/$pid/stat)
sleep 1
total_time2=$(awk '{if ($1 == "cpu") {sum = $2 + $3 + $4 + $5 + $6 + $7 + $8 + $9 + $10 + $11;print sum}}' /proc/stat)
cpu_time2=$(awk '{sum=$14 + $15;print sum}' /proc/$pid/stat)
awk -v cpu_time1=$cpu_time1 -v total_time1=$total_time1 -v cpu_time2=$cpu_time2 -v total_time2=$total_time2 -v cpu_core=$cpu_core 'BEGIN{cpu=((cpu_time2 - cpu_time1) / (total_time2 - total_time1)) * 100*cpu_core;print cpu}'
done
do