Time a command for N iterations and print out the average real/user/sys time used

gistfile1.txt

#!/bin/bash                                                                                                                                      

if [ "$#" -ne 2 ]; then
    echo "Usage: $0 <command> <repeat>"
    exit 1
fi

command="$1"
repeat="$2"

real_sum=0
user_sum=0
sys_sum=0

for ((i=0; i<repeat; i++)); do
    echo "Executing repetition $((i+1))..."
    #result=$(/usr/bin/time -p $command 2>&1)                                                                                                    
    result=$({ time -p $command > /dev/null 2>&1 ; } 2>&1)
    real_time=$(echo "$result" | grep real | awk '{print $2}')
    user_time=$(echo "$result" | grep user | awk '{print $2}')
    sys_time=$(echo "$result" | grep sys | awk '{print $2}')

    echo $real_time " "	$user_time " " $sys_time
    real_sum=$(echo "$real_sum + $real_time" | bc)
    user_sum=$(echo "$user_sum + $user_time" | bc)
    sys_sum=$(echo "$sys_sum + $sys_time" | bc)
done

average_real=$(echo "scale=2; $real_sum / $repeat" | bc)
average_user=$(echo "scale=2; $user_sum / $repeat" | bc)
average_sys=$(echo "scale=2; $sys_sum / $repeat" | bc)

echo "Average Real Time: $average_real seconds"
echo "Average User Time: $average_user seconds"
echo "Average Sys Time: $average_sys seconds"