runTests.sh

#!/usr/bin/env bash

rm -f mine/tests/*.out
for f in tests/*.in
do
 ./pol < $f > mine/$f
 # do something on $f
done

cd mine/tests
for file in *.in; do
    mv "$file" "$(basename "$file" .in).out"
done
cd ../..
diff -x '*.in' -x '*.mine' tests mine/tests