MD5 hash verification of input strings

verify.sh

#!/usr/bin/env bash

if [[ $# -eq 0 ]] ; then
  echo -e "\n\tUsage: ${0} {site} {username}"
  echo -e "\n\tExamples:"
  echo -e "\n\t\t${0} nickelodeon.com spongebobsquarepants@nick.tv"
  echo -e "\n\t\t${0} btsport.com stevieG\n"
  exit 0
fi

_site_=`echo ${1} | xargs`
_username_=`echo ${2} | xargs`
_custom_str_=${_site_}/${_username_}

HASH=`md5 -s "${_custom_str_}" | cut -d= -f2 | xargs`
echo -e "\n\t${_custom_str_}: ${HASH}\n"
echo ${HASH} | pbcopy