IPhex

#!/bin/bash
if [ $# -lt 1 ]
then
        echo "IP-Address to HEX converter"
        echo "Usage:   \"`basename $0` IPADDRESS\""
        echo "  e.g.    `basename $0` 127.0.0.1 = `$0 127.0.0.1`"
else
        IP_ADDR=$1
        printf '%02X' ${IP_ADDR//./ }; echo
fi