#!/usr/bin/env bash if [ -z $1 ] then THREADS=4 else THREADS=$1 if [ $1 -le 0 ] then echo "thread num must be greater then 0" exit 1 fi fi if [ -z $2 ] then FILENAME=data.txt else FILENAME=$2 fi rm $FILENAME 2> /dev/null for i in $(eval echo {1..$THREADS}) do ./run -r 100000000 -i 5 -n $i | tee -a $FILENAME done