Download all available wallpapers from National Geographic's photo contest 2012

national_geographic_photo_contest_2012_wallpaper_download.sh

#!/bin/bash

root=http://ngm.nationalgeographic.com
path=ngm/photo-contest/2012/entries/wallpaper
type=(nature places people)

for kind in "${type[@]}"
do
    for week in {1..13}
    do
        index=1
        curl $root/$path/$kind-week-$week |
        awk 'BEGIN {FS="\""} {if ($2=="wallpaper_monitor") print $6}' |
        while read line
        do
            curl -o $kind-`printf %02d $week`-`printf %02d $index`.jpg $root$line
            let index=index+1
        done
    done
done