#!/bin/bash

ECHOARGS=
LENGTH=12

while getopts nl: ARG; do
    case ${ARG} in
        n) ECHOARGS="-n"
           ;;

        l) LENGTH=${OPTARG}
           ;;

        ?) printf "Usage: %s [-n]\n" ${0}
           exit 1
           ;;
    esac
done

PW=$(jot -rc 256 48 123 | grep -m${LENGTH} "\w" | rs -g 0 ${LENGTH})

echo ${ECHOARGS} ${PW}

exit 0