#!/bin/bash
# vi:set ts=8 sw=4 et sta:
#
# Author : Clark J. Wang <dearvoid at gmail.com>
# License: GPLv2
# 
# $Date$
# $Author$
# $HeadURL$
# $Revision$
#
#--------------------------------------------------------------------#

((num = RANDOM % 52))
((num = num < 26 ? num + 97 : num + 39))
num=$(printf "%o" $num)
cmd="echo \$'\\$num'"
eval "$cmd"