## two command-line arguments
# first is a filename
# second is a string
# tell if the file contains the string.
from sys import argv
file_name = argv[1]
search_string = argv[2]
fp = open(file_name, "r")
contents = fp.read()
fp.close()
if search_string in contents:
    print(f"The string {search_string} is in file {file_name}.")
else:
    print(f"The string {search_string} is not in file {file_name}.")