linux 弱密碼掃描

cd  /usr/src/ &&wget http://www.openwall.com/john/j/john-1.8.0.tar.gz &&tar zxf john-1.8.0.tar.gz &&cd john-1.8.0/src/ &&make clean linux-x86-64 &&../run/unshadow /etc/passwd /etc/shadow >../leslie.txt && ../run/john --show ../leslie.txt