CentOS 6 install ClamAV via yum

yum -y install epel-release
yum -y install clamav clamd
# setup & start
chkconfig clamd on
service clamd start
# update
/usr/bin/freshclam
# auto update 
echo '#!/bin/bash' >> /etc/cron.hourly/update
echo '/usr/bin/freshclam' >> /etc/cron.hourly/update
chmod +x /etc/cron.hourly/update
# daily scan
echo '#!/bin/bash' >> /etc/cron.daily/manual_clamscan
echo 'SCAN_DIR="/" ' >> /etc/cron.daily/manual_clamscan
echo 'LOG_FILE="/var/log/clamav/manual_clamscan.log" ' >> /etc/cron.daily/manual_clamscan
echo '/usr/bin/clamscan -i -r $SCAN_DIR >> $LOG_FILE ' >> /etc/cron.daily/manual_clamscan
chmod +x /etc/cron.daily/manual_clamscan