[+/-] : 偵測硬碟使用空間並發出警告信

Linux Shell Script
當硬碟使用空間大於90%時就發出E-mail通知信


#!/bin/bash
df -h | grep -vE '^Filesystem' | awk '{ print $5 " " $6 }' | while read output
do
usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1 )
partition=$(echo $output | awk '{ print $2 }' )
if [ $usep -ge 90 ]; then
echo "Running out of space "$partition $usep%" on $(hostname) as on $(date)" | mail -s "Alert: Almost out of disk space $usep%" root
fi
done


再搭配Crontab就可以做出自動偵測.

[+/-] : 安裝ClamAV

ClamAV 下載網址：http://packages.sw.be/clamav/

CentOS 5.3 下載以下五個檔案：
1. clamav-0.95.2-4.el5.rf.i386.rpm -> RHEL5 and CentOS-5 x86 32bit
2. clamav-db-0.95.2-4.el5.rf.i386.rpm -> RHEL5 and CentOS-5 x86 32bit
3. clamav-devel-0.95.2-4.el5.rf.i386.rpm -> RHEL5 and CentOS-5 x86 32bit
4. clamav-milter-0.95.2-4.el5.rf.i386.rpm -> RHEL5 and CentOS-5 x86 32bit
5. clamd-0.95.2-4.el5.rf.i386.rpm -> RHEL5 and CentOS-5 x86 32bit

下載方法：
# wget http://packages.sw.be/clamav/clamav-0.95.2-4.el5.rf.i386.rpm
# wget http://packages.sw.be/clamav/clamav-db-0.95.2-4.el5.rf.i386.rpm
# wget http://packages.sw.be/clamav/clamav-devel-0.95.2-4.el5.rf.i386.rpm
# wget http://packages.sw.be/clamav/clamav-milter-0.95.2-4.el5.rf.i386.rpm
# wget http://packages.sw.be/clamav/clamd-0.95.2-4.el5.rf.i386.rpm

安裝順序：
1. clamav-db-0.95.2-4.el5.rf.i386.rpm
2. clamav-0.95.2-4.el5.rf.i386.rpm
3. clamd-0.95.2-4.el5.rf.i386.rpm
4. clamav-milter-0.95.2-4.el5.rf.i386.rpm -> 選項
5. clamav-devel-0.95.2-4.el5.rf.i386.rpm -> 選項

安裝方法：
# rpm -ivh clamav-db-0.95.2-4.el5.rf.i386.rpm
# rpm -ivh clamav-0.95.2-4.el5.rf.i386.rpm
# rpm -ivh clamd-0.95.2-4.el5.rf.i386.rpm
# rpm -ivh clamav-milter-0.95.2-4.el5.rf.i386.rpm
# rpm -ivh clamav-devel-0.95.2-4.el5.rf.i386.rpm

啟動方法：
service clamd start

更新病毒碼：
freshclam

掃描方法：
clamscan / -r