Checking for differences between lox output and expected out

for l in examples/*.lox
do
  out=$(mktemp)
  err=$(mktemp)
  java -classpath target/classes/ br.com.brandizzi.adam.myjlox.Lox $l > $out 2> $err

  if ! diff $l.out $out
  then
    FAIL=1
  fi
done