panda update script

Hello Guys I searched around for an update script I ended up making one
a brute force script seems to work but not very clean.

#!/bin/bash

DEVICE=/dev/nst0
MONTHPAV=`date +%m`
DAYPAV=`date +%d`
MINPAV=`expr $DAYPAV - 1`
ZEROPAV="0"

TWOPAV="pav$MONTHPAV$ZEROPAV$MINPAV.zip"
THREEPAV="pav$MONTHPAV$MINPAV.zip"
ONEPAV="pav$MONTHPAV$DAYPAV.zip"

echo "file name $ONEPAV $TWOPAV $THREEPAV"



wget -O pav.zip --http-user=xxx --http-passwd=xxx
http://acs.pandasoftware.com/software/basevirus/$TWOPAV
unzip pav.zip
mv pav.sig /opt/pavcl/usr/lib/panda/pav.sig
rm -rf pav.zip

wget -O pav.zip --http-user=xxx --http-passwd=xxxx
http://acs.pandasoftware.com/software/basevirus/$THREEPAV
unzip pav.zip
mv pav.sig /opt/pavcl/usr/lib/panda/pav.sig
rm -rf pav.zip

wget -O pav.zip --http-user=xxx --http-passwd=xxx
http://acs.pandasoftware.com/software/basevirus/$ONEPAV
unzip pav.zip
mv pav.sig /opt/pavcl/usr/lib/panda/pav.sig
rm -rf pav.zip