비밀번호 크래커. 더 많은 정보: https://www.openwall.com/john/.
john {{경로/대상/해시들.txt}}
john --show {{경로/대상/해시들.txt}}
john --show --users={{사용자_ID들}} {{경로/대상/해시들1.txt 경로/대상/해시들2.txt ...}}
john --wordlist={{경로/대상/워드리스트.txt}} {{경로/대상/해시들.txt}}
john --list=formats
john --format={{md5crypt}} {{경로/대상/해시들.txt}}
john --rules {{경로/대상/해시들.txt}}
mycrack.rec:john --restore={{경로/대상/mycrack.rec}}