#!/bin/sh usage() { cat <<-EOF Usage: create-cracklib-dict [options] wordlist ... This script takes one or more word list files as arguments and converts them into cracklib dictionaries for use by password checking programs. The results are placed in the default compiled-in dictionary location. If you wish to store the dictionary in a different location, use the cracklib-format and cracklib-packer commands directly. Options: -o, --output Alternative output file for cracklib-packer -h, --help This help output Example: create-cracklib-dict /usr/share/words EOF if [ -n "$*" ] ; then echo 1>&2 echo "Error: $*" 1>&2 exit 1 else exit 0 fi } output="" while [ -n "$1" ] ; do case $1 in -o|--output) output=$2; shift;; -h|--help) usage;; --) break;; -*) usage "unknown option '$*'";; *) break;; esac shift done [ -z "$*" ] && usage exec cracklib-format "$@" | cracklib-packer ${output}