DNSMasq Sci-Hub domains generator

#!/bin/bash
# Mon Dec 25 2017
# Generate sci-hub domains in bulk, for DNSMasq use

# Except for the valid / otherwise-assigned TLDs
exclude=$(echo sci-hub.{hk,la,mn,name,tv,tw,tree.la,org,cc,ac,io,bz} |
    sed -e 's/ /|/g')

echo "# Created: $( date )"
curl https://data.iana.org/TLD/tlds-alpha-by-domain.txt |
    tr [A-Z] [a-z] |
    awk '! /^#/ {
    printf( "address=/sci-hub.%s/80.82.77.8%s\n", $1, 3+NR%2) }'  |
    egrep -v "(${exclude})"