#!/bin/bash rm data.csv echo "Rank, SOR, RB" >> data.csv for i in {1..72} do res=$(mpirun -n $i ./exe-ICC dcavity.par 1 | grep "Solution took" | cut -c 14- ) res2=$(mpirun -n $i ./exe-ICC dcavity.par 2 | grep "Solution took" | cut -c 14- ) s="$i, $res, $res2" s=${s//"s"/} echo $s >> data.csv done