getBingWallpaper.sh

#!/bin/bash

#If we do not sleep, the network is not available :( => we should use systemd !!!
sleep 8

# inspired by http://disq.us/p/1anwvre
# requires to set wallpaper mode as slideshow from ~/wallpaper

echo "`date`" >> getBingWallpaper.log

cd $(dirname $0)
img=$(wget -qO - https://www.bing.com | grep -o "url:.*1920x1080.jpg" | cut -d'"' -f2)
[ -z "$img" ] && exit 1

fname=`basename $img`
if [ ! -f ~/wallpaper/$fname ]; then
    echo "file ~/wallpaper/$fname does not exist... yet ;)"
    echo "file ~/wallpaper/$fname does not exist... yet ;)" >> getBingWallpaper.log
    wget -P /tmp/ -qN https://www.bing.com$img || exit 1
    
    rm ~/wallpaper/*.jpg
    mv /tmp/$fname ~/wallpaper
else
    echo "file ~/wallpaper/$fname already exists. Not downloading again..."
    echo "file ~/wallpaper/$fname already exists. Not downloading again..." >> getBingWallpaper.log
fi

2018-06-24 new compatibility with Bing having now more than one resulting image returned by wget command