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#!/bin/bash

APOD_DIR=/home/mpbailey/apod_images

if [ "$1" = "" ]; then
    date=$(date +'%y%m%d')
else
    date=$1
fi

img=$(curl --silent http://antwrp.gsfc.nasa.gov/apod/ap$date.html \ 
    | grep 'a href=\"image' \
    | sed "s/^.*\"\(image\/[^\"]*\)\".*$/http:\/\/antwrp.gsfc.nasa.gov\/apod\//")
dest=$APOD_DIR/apod_$date.$(echo $img | sed "s/.*\.\(.*\)$//")
curl --silent $img > $dest
gconftool-2 -t string -s /desktop/gnome/background/picture_filename $dest