====== Website Thumbnails ======

Sometimes you may want to create thumbnail previews of some webpages (eg. for a link list). Instead of doing this manually you can script it, too.

The following script need the [[http://www.opera.com|Opera]] browser (you should be able to reproduce this with any other Linux Browser) and Xvfb.

To install the latter on [[Debian]]:

  #> apt-get install xvfb

Create a file named ''urls.txt'' with one URL per line. Then run the script below like this:

  $> xvfb-run -s '-screen 0 1024x768x24' ./webthumb.sh

===== webthumb.sh =====

<code bash>
#!/bin/sh

URLS=urls.txt
IMAGES=images
mkdir -p $IMAGES

echo "starting opera..."
opera -geometry 1024x768+0+0 -nosplash &
sleep 20
echo "done."

for url in `cat $URLS`
do
  md5=`echo -n "$url"|md5sum|awk '{print $1}'`
  img="$IMAGES/$md5.jpg";
  if [ -e "$img" ]
  then
    #nothing
    echo -n ''
  else
    echo "$url"
    opera -remote "openURL($url)"
    sleep 7
    xwd -root -screen |xwdtopnm |pnmcut 4 170 1020 594|pnmscale -xysize 170 170 |pnmtojpeg>$img
    echo "$img created"
  fi
done
</code>