grep "merge base must be tested" my_bisect_log.txt &&
grep $HASH4 my_bisect_log.txt &&
git bisect skip > my_bisect_log.txt 2>&1 &&
grep "merge base must be tested" my_bisect_log.txt &&
grep $HASH4 my_bisect_log.txt &&
git bisect skip > my_bisect_log.txt 2>&1 &&