#!/usr/bin/env bash
# random.sh - Random String Generator
# Author: Sean B. Palmer, inamidst.com
# 
# <crschmidt> sbp! Random 8 alphanumeric character generator in bash! go!
# [just over ten minutes elapse...]
# <sbp> crschmidt: done

RESULT=''
ALPHANUM=(A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
          a b c d e f g h i j k l m n o p q r s t u v w x y z
          0 1 2 3 4 5 6 7 8 9)

for ((i = 0; i < 8; i++))
do SEED=$(date +%N | sed 's/^0*//')
   RESULT="$RESULT${ALPHANUM[$(($SEED % ${#ALPHANUM[@]}))]}"
done

echo $RESULT