This script will download the current blacklist tarball from Shalla, extract it, stop NxFilter, call the nxd.ShallaUpdate import, restart the service, and clean up the mess.

nx-shalla-update.sh

#!/bin/sh
#
# Shallalist Downloader for NxFilter
# Mark Page [m.e.page_at_gmail.com]
# modified: Mon Apr 28 20:34:59 CDT 2014
#
# This script will download the current blacklist
# tarball from Shalla, extract it, stop NxFilter,
# call the nxd.ShallaUpdate import, restart the 
# service, and clean up the mess.
#

if [ "$(id -u)" != "0" ]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

#
# NxFilter installation location and Java heap
# size options. Change as needed.
#
export NX_HOME=/opt/nxfilter
export JVM_HEAP="512m"
export PATH=$PATH:/usr/bin:/usr/local/bin

if [ ! -f "$NX_HOME/nxd.jar" ]; then
  echo "\n ERROR! NxFilter environment not found at \"$NX_HOME\"!"
  echo " - Set the NX_HOME var for this script to NxFilter's application directory and try again.\n"
  exit 1
fi

echo "Downloading from Shallalist..."
cd /tmp
wget http://www.shallalist.de/Downloads/shallalist.tar.gz

echo "Extracting shallalist.tar.gz..."
tar -xf shallalist.tar.gz

echo "Stopping NxFilter Service..."
service nxfilter stop
sleep 5

NX_UPDATE="-Djava.net.preferIPv4Stack=true -Xmx$JVM_HEAP -Djava.security.egd=file:/dev/./urandom -cp $NX_HOME/nxd.jar:$NX_HOME//lib/*: nxd.ShallaUpdate /tmp/BL"
cd $NX_HOME

echo "Importing Categories..."
/usr/bin/java $NX_UPDATE

echo "Restarting Service..."
service nxfilter start

echo "Cleaning up..."
rm -r -f /tmp/BL
rm -f /tmp/shallalist.tar.gz

echo "Done."
exit