GRC's Perfect Passwords Generator

npass.sh

#!/bin/bash
# GRC's Perfect Passwords Generator

WGET="/usr/bin/wget"
FILE=`tempfile`
$WGET -q --tries=10 --timeout=5 http://www.google.com -O $FILE &> /dev/null
[ -z "$1" ] && echo -e "\E[31mGRC's\E[37m Ultra High Security Password Generator v0.1\r\033[0m" && echo -e '--------------------------------------------------\n' && 

echo -e '\E[37mUsage: ppassword [\E[31m-an alphanumeric\E[37m ] [\E[32m-as ascii\E[37m ] [ -hex hexadecimal ]' && exit 100

case "$1" in

        -an)
		if [ ! -s $FILE ];then
		echo "ERROR: Please check you internet connectivity."
		else
                curl -s https://www.grc.com/passwords.htm | grep alpha | head -n1 | perl -wlne 'm/font>(.*)<\/font/i && print $1' | sed -e "s/&#xB0;//g" | cut -d" " -f14 | sed 's/size=2>//g'
		fi
                ;;
        -as)
		if [ ! -s $FILE ];then
		echo "ERROR: Please check you internet connectivity."
		else
                curl -s https://www.grc.com/passwords.htm | grep ASCII | head -n1 | perl -wlne 'm/font>(.*)<\/font/i && print $1' | sed -e "s/&#xB0;//g" | cut -d" " -f14 | sed 's/size=2>//g'
		fi
                ;;
        -hex)
		if [ ! -s $FILE ];then
		echo "ERROR: Please check you internet connectivity."
		else
                curl -s https://www.grc.com/passwords.htm | grep hexadecimal | head -n1 | perl -wlne 'm/font>(.*)<\/font/i && print $1' | sed -e "s/&#xB0;//g" | cut -d" " -f14 | sed 's/size=2>//g'
		fi
                ;;
        *)
		echo -e '\E[37mUsage: ppassword [\E[31m-an alphanumeric\E[37m ] [\E[32m-as ascii\E[37m ] [\E[37m -hex hexadecimal ]'
                ;;
esac

I've updated this gist to remove the older tempfile syntax with the newer mktemp syntax and added a a trap to remove the temp file for the internet check to ensure a clean filesystem. Even though the file is being written to /tmp I don't like having a bunch of tmp files left over from script executions. Since can't make a pull request on a gist, i'm offering up my fork to update this script.

Fantastic Script though by the way, I'm glad I looked for an existing on before writing my own.