import re


def exclude(search_string, list_of_strings):
    """
    Grep for value and only show lines NOT matching
    :param search_string:
    :param list_of_strings:
    :return:
    """
    grep_minus_v_string = r"^((?!" + re.escape(search_string) + r").)*$"
    return filter(lambda x: re.search(grep_minus_v_string, x, re.UNICODE), list_of_strings)