GENERIC dnsmasq adblock for Alfie's Amod firmware

#!/bin/sh
RED='\033[0;31m'
GREEN='\033[0;32m'
NC='\033[0m'
LBLUE='\033[1;34m'

USB_PATH="/mnt/shares/U/conf/"
DNSMASQ="dnsmasq"
DNS_PATH="/usr/etc/amod/init.d/dns"

if uname -a | grep -q 2200V4; then {
    DNSMASQ="adnsmasq"
    USB_PATH="/var/mnt/usb0/part1/conf/"
    DNS_PATH="/etc/amod/init.d/dns"
}
fi

if /etc/amod/bin/cron check dnsmasq; then
    echo "${GREEN}Cron è a posto!${NC}\n"
else
    /etc/amod/bin/cron add "30 13 * * * ${USB_PATH}dnsmasq_update_adblock.sh"
    echo "${RED}Cron non era a posto: ${GREEN}sistemato!${NC}\n"
fi

if amodfunc wanip >/dev/null 2>&1; then
    echo "${GREEN}Online${NC}\n"
    cd ${USB_PATH}

    echo "Downloading file from YoYo, SWC, MVPS, EasyList and malwaredomains${LBLUE}"
    curl --progress-bar -o yoyo http://pgl.yoyo.org/as/serverlist.php?hostformat=hosts&showintro=0
    curl --progress-bar -o swc http://someonewhocares.org/hosts/hosts
    curl --progress-bar -o mvps http://winhelp2002.mvps.org/hosts.txt
    curl --progress-bar --insecure -o malware https://easylist-downloads.adblockplus.org/malwaredomains_full.txt
    curl --progress-bar --insecure -o easy https://easylist-downloads.adblockplus.org/easylistitaly+easylist.txt

    echo "${NC}Processing YoYo.org file"
    cat yoyo | grep "127.0.0.1" | awk '{ print "127.0.0.1\t"$2 }' >> adblock
    echo "Processing SomeoneWhoCares.org file"
    cat swc | grep "127.0.0.1" | awk '{ print "127.0.0.1\t"$2 }' | grep -v "#" >> adblock
    echo "Processing MVPS.org file"
    cat mvps | grep 0.0.0.0 | grep -v "# 0.0.0.0" | awk '{ print "127.0.0.1\t"$2 }' >> adblock
    echo "Processing Easylist"
    cat easy | grep ^\|\|[^\*]*\^$ | sed -e 's:||:127.0.0.1  :' -e ' s:\^::' > ${USB_PATH}easy
    echo "Processing malicious sites list"
    cat malware | grep ^\|\|[^\*]*\^$ | sed -e 's:||:127.0.0.1      :' -e 's:\^::' >> ${USB_PATH}malware
    sed -i -n -e '/^127/p' yoyo swc mvps adblock malware easy
    sed -i -e "s/[[:space:]]\+/ /g" yoyo swc mvps adblock malware easy

    [ -e mylist ] && {
        echo "Merging mylist"
        sed -i -n -e '/^127/p' mylist
        sed -i -e '$a\' adblock
        cat mylist >> adblock
    }
    echo "Merging malware and easylist do adblock"
    sed -i -e '$a\' adblock
    cat malware >> adblock
    sed -i -e '$a\' adblock
    cat easy >> adblock
    sed -i -e '/^\s*$/d' adblock

    echo "Writing changes to zone file"
    tr '[A-Z]' '[a-z]' < adblock | sort -fu > adblock.uniq
    rm yoyo swc mvps adblock malware easy
else
    echo "${RED}Offline"
fi

killall -q -SIGHUP ${DNSMASQ} || {
    echo "dnsmasq not running...${NC}"
    ${DNS_PATH} start
}