从国家地理网站下载每日图片
#!/usr/bin/bash
# picngs: Download today’s picture from National Geographics website
# Michael.Fantasia@Gmail.com
BADDATE=66
WEBFAILURE=67
SEDFAILURE=68
picdir=${2:-“d:/Pictures/经典照片“}
cd ~/temp
rm -f 00
if [ $# -eq 0 ]
then
mfdate=$(date +%Y.%m.%d)
wget -q “http://lava.nationalgeographic.com/pod/“ -O 00
else
if date -d $1 +%Y%m%d
then
mfdate=$(date -d $1 +%Y.%m.%d)
wget -q “http://lava.nationalgeographic.com/cgi-bin/pod/wallpaper.cgi?day=$(date -d $1 +%d)&month=$(date -d $1 +%m)&year=$(date -d $1 +%y)“ -O 00
else
echo “Unknown date format.“ >&2
exit $BADDATE
fi
fi
if [ $? -ne 0 ]
then
echo “Error in downloading picture.“ >&2
exit $WEBFAILURE
fi
findname=$(sed -n ‘s/.*\(sm\|lg\)_\([^>]*jpg\).*/lg_\2/p‘ 00 | sed -n ‘1 p‘)
if [ -z "findname" ]
then
echo “No picture found.“ >&2
exit $SEDFAILURE
fi
picname=$mfdate-$(sed -n ‘/<title>/ s/.*: \+\(.*\)<\/title>/\1/p‘ 00 | sed -e ‘s/[,"]//g‘ -e ‘s/ \+$//‘ -e ‘s/ /_/g‘ -e “s/’/'/g“ | tr ‘[:upper:]‘ ‘[:lower:]‘)
wget -q -c “http://lava.nationalgeographic.com/pod/pictures/$findname“ -O $picname.jpg
if [ $? -ne 0 ]
then
echo “Error in downloading picture.“ >&2
exit $WEBFAILURE
else
mfdate=$(echo $mfdate | sed ‘s/\.//g‘)
mkdir -p $picdir/$(date -d $mfdate +%Y)
mv $picname.jpg $picdir/$(date -d $mfdate +%Y)/
imdisplay $picdir/$(date -d $mfdate +%Y)/$picname.jpg &
fi
echo “Done.“
rm -f 00
exit 0