Cracked passwords will be printed to the terminal and saved in the file called. While cracking, you can press any key for status, or q or Ctrl-C to abort the session. By default, the state is also saved every 10 minutes to permit for recovery in. a custom cracking mode using the built-in compiler supporting a subset of C).
John the Ripper documentation - Openwall A Really Good Article on How Easy it Is to Crack Passwords