# crunch > Wordlist generator. > More information: . - Output a list of words of length 1 to 3 with only lowercase characters: `crunch {{1}} {{3}}` - Output a list of hexadecimal words of length 8: `crunch {{8}} {{8}} {{0123456789abcdef}}` - Output a list of all permutations of abc (lengths are not processed): `crunch {{1}} {{1}} -p {{abc}}` - Output a list of all permutations of the given strings (lengths are not processed): `crunch {{1}} {{1}} -p {{abc}} {{def}} {{ghi}}` - Output a list of words generated according to the given pattern and a maximum number of duplicate letters: `crunch {{5}} {{5}} {{abcde123}} -t {{@@@12}} -d 2@` - Write a list of words in chunk files of a given size, starting with the given string: `crunch {{3}} {{5}} -o {{START}} -b {{10kb}} -s {{abc}}` - Write a list of words stopping with the given string and inverting the wordlist: `crunch {{1}} {{5}} -o {{START}} -e {{abcde}} -i` - Write a list of words in compressed chunk files with a specified number of words: `crunch {{1}} {{5}} -o {{START}} -c {{1000}} -z {{gzip|bzip2|lzma|7z}}`