Generate a Diceware-style password list.

dice-10.sh

#!/usr/bin/env bash

# This script takes a list of words and turns it into a 10-sided-die version of a
# Diceware list. It:
# * Reads a list of words
# * Removes long words and those with non-ASCII characters, for ease-of-use
# * Randomly orders them
# * Takes the first 10,000 (for use with 10-sided dice)
# * Sorts them nicely
# * Numbers the lines appropriately
# * Saves them to a new file

WORDS='/usr/share/dict/usa'
OUT='passwords.txt'

cat "${WORDS}" | \
grep -P '^[a-zA-Z0-9]+$' | \
sort -R | \
head -n 10000 | \
sort | \
nl --number-format=rz --starting-line-number=0 --number-width=4 --number-separator=' ' | \
> "${OUT}"