manga.sh

#!/bin/bash
if [[ -z "$1" ]] ; then
    echo "usage `basename "$0" ` <manga title>"
    exit 0
fi
myDIR="/home/$USER/Documents/$1"
manga=$( echo "$1" | sed 's/^ //' | sed 's/ /-/g' )
link="http://www.mangapanda.com/$manga"
useragent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0"
nbChapters=$( wget -e robots=off --user-agent "$useragent" -qO - "$link" | sed 's/</\n</g' | grep  -A 3 'class="chico_manga"' | tail -1| sed 's/<[^>]*>//' | tr -dc '0-9' )
for (( chapter=1; chapter<=$nbChapters; chapter++ )) ; do
    nbPages=$(wget -e robots=off --user-agent "$useragent" -qO - "$link/$chapter" | sed 's/</\n</g' | grep '</select> of ' | tr -dc '0-9')
    nbPages=$(( nbPages +1 ))
    echo "downloading chapter $chapter / $nbChapters       "
    for (( i=1; i < $nbPages ; i++ )) ; do
        if ! [ -f "$myDIR/$chapter/$i.png"  ] ; then
            imageLink=$(wget -e robots=off --user-agent "$useragent" -qO - "$link/$chapter/$i" | sed 's/</\n</g' | grep '<img id="img" '  )
            index=$(expr index "$imageLink"   'src' )
            index=$((index +4))
            imageLink=${imageLink:$index}
            imageLink=$(echo $imageLink | cut -d'"' -f 1 )
            echo -ne "\t downloading  $i of $nbPages       "\\r
            curl  -s -S  "$imageLink"   --create-dirs -o "$myDIR/$chapter/$i.png"
        fi
    done
    echo -en "\e[1A"   #When you want to go N lines up, use \e[<N>A.
done