Update write_inputs.sh

Author: madDipanjan

tools/write_inputs.sh

@@ -74,7 +74,7 @@ if [ $start == "c" ]; then
 
 ###### RUN MATLAB SCRIPT through HPC job script
 cat <<EOF > pre-job.$iexpnr
-
+#!/bin/bash
 #PBS -l walltime=24:00:00
 #PBS -l select=1:ncpus=8:mem=64gb