HTML cleanup script

#!/bin/bash
# HTML Clean-up script using Dave Ragget's HTML-Tidy and SED.
# Script para limpeza de HTML usando o HTML-Tidy, de Dave Ragget e o SED.
# http://tidy.sourceforge.net  -- http://www.gnu.org/software/sed #
# This work was assembled from several loose answers collected over many
# different Internet forums --- I do not claim authorship. Public Domain.
# Este trabalho reúne diversas respostas avulsas coletadas em muitos
# fóruns da Internet --- Não reivindico a autoria. Domínio Público.
# José Geraldo Gouvêa -- jggouvea at gmail.com

for file in post.txt; do
sed 's/<br \/>/<p>/g' post.txt > post.1
tidy --char-encoding utf8 --wrap 0 --logical-emphasis true --enclose-block-text true \
--drop-empty-paras true post.1 > post.2
sed '1,7d' post.2 > post.3
sed 'N;$!P;$!D;$d' post.3 > post.4
sed -e :a -e '$b;N;s/\n//;ba' post.4 > post.5
sed 's/ - / \&ndash; /g' post.5 > post.6
sed 's/ -- /\&mdash;/g' post.6 > post.7
sed 's/\.\.\./\&hellip;/g' post.7 > post.8
mv post.8 newpost.html
rm post.*
mv newpost.html post.txt
done

for f in post.txt;
do
sed 's/^"/\&ldquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/"$/\&rdquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/ "/ \&ldquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/" /\&rdquo; /g' $f > $f.2 ; mv $f.2 $f
sed 's/[TAB]"/[TAB]\&ldquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/"[TAB]/\&rdquo;[TAB]/g' $f > $f.2 ; mv $f.2 $f
sed 's/")/\&rdquo;)/g' $f > $f.2 ; mv $f.2 $f
sed 's/("/(\&ldquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/";/\&rdquo;;/g' $f > $f.2 ; mv $f.2 $f
sed 's/":/\&rdquo;:/g' $f > $f.2 ; mv $f.2 $f
sed 's/,"/,\&rdquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/",/\&rdquo;,/g' $f > $f.2 ; mv $f.2 $f
sed 's/\."/\.\&rdquo;/g' $f > $f.2 ; mv $f.2 $f
sed 's/"\./\&rdquo;./g' $f > $f.2 ; mv $f.2 $f
done