#!/bin/sh

URL="intel-ussur.ru"
MAXWORD=100

w3m -dump -T text/html ${URL} | \
sed s/" "/"\n"/g | \
sort | \
sed 's/[[:upper:]]/\l&/g' | \
sed s/[^a-zа-я-]//g | \
uniq -c -d | \
sort -n | \
awk 'length($2) > 4' | \
tail -n ${MAXWORD} | \
sort -n -r