4chan downloader

#!/bin/bash
###################################
# Skrypt pobierajacy wszystkie ob-#
# razki z podanego kanalu 4chana  #
#      (Oryginalny rozmiar)       #
###################################
##Config
FILENAME="imglist"
FILENAME2="imglist2"
##Input
echo "Podaj kanal: (ex. b)"
read CHANNEL
echo "Do ktorej strony? (max 15 dla b, 10 dla reszty)"
read PAGES
##Pre-processing
#FIRST PAGE
ARRAY=($(curl -s "http://boards.4chan.org/"$CHANNEL"/"| grep -o -e 'res/[0-9]\{2,10\}' | uniq))
echo "--Przetwarzanie strony 0 z "$PAGES
for x in ${ARRAY[@]}
do
    #echo $x
    curl "http://boards.4chan.org/"$CHANNEL"/"$x| grep -o -e "//images.4chan.org/"$CHANNEL"/src/................." | uniq>>$FILENAME
done
#REST OF PAGES
for i in {1..$PAGES}
do
    echo "Przetwarzanie strony "$i" z "$PAGES
    ARRAY=($(curl -s "http://boards.4chan.org/"$CHANNEL"/"$i| grep -o -e 'res/[0-9]\{2,10\}' | uniq))

    for x in ${ARRAY[@]}
    do
        #echo $x
        curl "http://boards.4chan.org/"$CHANNEL"/"$x| grep -o -e "//images.4chan.org/"$CHANNEL"/src/................." | uniq>>$FILENAME
    done
done
echo "-- Przetworzono"
##Downloading
echo "-- Pobieranie"
sed $FILENAME -e "s/\/\/images/http\:\/\/images/g" >$FILENAME2
rm $FILENAME
mkdir $CHANNEL
mv ./$FILENAME2 ./$CHANNEL/$FILENAME2
cd $CHANNEL
wget -nc `cat $FILENAME2`
rm $FILENAME2
cd ..
#EOF