Password Generator Bash (Very Simple)

gen_pass.sh

#!/bin/bash

if [ "$#" -lt 1 ]; then
    echo "`basename $0` <8-92>";
    exit 1;
fi

PASS=`date +%s | sha256sum | base64 | head -c $1`

echo "$PASS";

usage

$ gen_pass.sh <8-92>

example

$ gen_pass.sh 32
MjljZGFhZmY5NzE5NDFmOWZhOTc4MjA3