display most read stories on bbc from bash

bbc-top-news.sh

#!/usr/bin/env bash

function command_exists () {
    type "$1" &> /dev/null ;
}

function print_error() {
    printf "\e[31m Error \e[0m: %s \n" "$1" 
}

# Check that required tools are installed
if ! command_exists lynx; then
    print_error "you need lynx to run this program. please visit: http://lynx.browser.org/"  
    exit 1  
fi

if ! command_exists hxnormalize || ! command_exists hxselect; then
    print_error "you need html-xml-utils to run this program. please visit http://packages.ubuntu.com/trusty/text/html-xml-utils"  
    exit 1  
fi

rawList=$(wget -O - -q "http://www.bbc.co.uk/news/popular/read" | 
hxnormalize -x 2>/dev/null | 
hxselect -i "ul.most-popular-page__list")

stringToMatch="href=\"\/"
stringToReplace="href=\"http://bbc.co.uk/"

if [[ $1 == "in-lynx" ]]; then
    echo "${rawList//$stringToMatch/$stringToReplace}" | lynx -stdin
    exit 0
fi

echo "${rawList//$stringToMatch/$stringToReplace}" | lynx -stdin -dump