Awesome window manager: Fetch the NASA Image of the Day and set it as background

nasaBackground.sh

#!/bin/bash -e

# Grabs the NASA image of the day by RSS feed and updates the gnome
# background. add this to your cron jobs to have this happen daily.  this is,
# obviously, a hack, that is likely to break at the slightest change of NASA's
# RSS implementation. yay standards!
#
# Source: https://awesome.naquadah.org/wiki/NASA_IOTD_Wallpaper

FEED='http://www.nasa.gov/rss/lg_image_of_the_day.rss'
rss=$(wget -q -O - "$FEED")
img_url=$(echo $rss | xmlstarlet sel -t -v '(//item)[1]/enclosure/@url')
img_name=$(echo $rss | xmlstarlet sel -t -v '(//item)[1]/title')

mkdir -p $HOME/.wallpaper

# this command will overwrite the image if it already exists
wget -q -O "$HOME/.wallpaper/$img_name" "$img_url"

# Delete all other (older) images
find $HOME/.wallpaper/ -type f -not -name "$img_name" -delete

feh --bg-fill "$HOME/.wallpaper/$img_name"