#!/bin/sh
#
# this script will out a exim .forward file in to a users
# home dir to filter junk. 
#
# this will hold which dir is used for mail
JUNKLOCATION=noloc
cd $home
if [ -f Mail/junk ]
  then JUNKLOCATION="Mail" 
elif [ -f mail/junk ] 
  then JUNKLOCATION="mail"
else
  echo "junk email folder not found"
  echo "please create a folder called junk (with a small j)"
  exit
fi
#
# now we install the filter
#
cd $home
# check to see if they already have a .forward file
if [ -f .forward ]
   then echo "you already have a filter file in place"
   echo "please contact library systems for help"
   echo " "
   exit
fi
#
#
echo "# Exim filter" > .forward
echo "if error_message then finish endif" >> .forward
echo "if \$header_X-UKCLib-Spam-Flag: contains \"YES\"" >> .forward
echo "then" >> .forward
echo "save \$home/$JUNKLOCATION/junk" >> .forward
echo "seen finish" >> .forward
echo "endif" >> .forward

# now let them know
echo "emails that look like they are spam will now be moved in to your"
echo "junk email folder. NOTE you must check this folder to make sure"
echo "no genuine have been put there in error"
echo " " 
echo "$USER is now using junk filters" | mailx -s "Junk filtering" foobar@ukc.ac.uk
echo "You are now using junk filters" | mailx -s "$USER junk filtering" $USER