Crunch is a wordlist generator where you can specify a standard character set or a character set you specify. Crunch can generate all possible combinations and permutations.
Features:
Crunch generates wordlists in both combination and permutation ways
It can breakup output by number of lines or file size
Resume support
Pattern now supports number and symbols
Pattern now supports upper and lower case characters separately
Adds a status report when generating multiple files
New -l option for literal support of @,%^
New -d option to limit duplicate characters see man file for details
Unicode support
The first command will generate a dictionary that contains minimum 3 character letters and maximum 4 by using default character sets. It will start from letters aaa and end with zzzz.
crunch 3 4 -o wordlist.3-4.txt
Now we’re going to create a wordlist with minimum 3 and maximum 4 strings and using the string “test” it will start with “ttt” and will end with “ssss”:
crunch 3 4 test –o test1.txt
Now let’s mix letters with numbers “test123” as the strings and use minimum 4 and maximum 5:
crunch 4 5 test1234 –o test2.txt
Using the man pages on crunch we can see how to create wordlists with different types of combinations from lowercase and uppercase letters, numbers and symbols:
Let’s create one with upper letters using the symbol “%%”:
crunch 6 6 test%% -o test-upper.txt
Create one with symbols with this command crunch 6 6 test^^ -o test-symbols.txt
