Linux系统下免费防毒软件安装及使用经验
Linux下免费的防毒软件可真是少，不过工夫不负有心人，还是让我找到了一个。
clam antivirus 官方网站： http://clamav.sourceforge.net/
我用的是red hat as 3.所以我就下载了rpm包来装：
http://crash.fce.vutbr.cz/crash-hat/1/clamav/clamav-0.70-1.i386.rpm
安装好了以后，就可以用了。
启动 clamd进程就可以及时防病毒了。
更新病毒用：freshclam
-bash-2.05b# freshclam --help
Clam AntiVirus: freshclam 0.70
(C) 2002 - 2004 Tomasz Kojm --help -h show help --version -V print version number and exit --verbose -v be verbose --debug enable debug messages --quiet be quiet, output only error messages --stdout write to stdout instead of stderr (this help is always written to stdout) --config-file=FILE read configuration from FILE. --log=FILE -l FILE log into FILE --daemon -d run in daemon mode --pid=FILE -p FILE save daemon's pid in FILE --user=USER -u USER run as USER --checks=#n -c #n number of checks per day, 1 <= n <= 50 --datadir=DIRECTORY download new databases into DIRECTORY --daemon-notify[=/path/clamav.conf] send RELOAD command to clamd --on-update-execute=COMMAND execute COMMAND after successful update --on-error-execute=COMMAND execute COMMAND if errors occured -bash-2.05b# freshclam ClamAV update process started at Wed Apr 28 09:45:31 2004 Reading CVD header (main.cvd): OK main.cvd is up to date (version: 22, sigs: 20229, f-level: 1, builder: tkojm) Reading CVD header (daily.cvd): OK Downloading daily.cvd [*] daily.cvd updated (version: 287, sigs: 1047, f-level: 2, builder: tomek) Database updated (21276 signatures) from database.clamav.net (212.113.16.74). Clamd successfully notified about the update. 扫描病毒 -bash-2.05b# clamscan －r /root /root/.viminfo: OK /root/.bash_history: OK /root/CFOLibrary.dll: OK /root/#*mail*#25848DT2#: OK /root/.Xauthority: OK ----------- SCAN SUMMARY ----------- Known viruses: 21276 Scanned directories: 1 Scanned files: 5 Infected files: 0 Data scanned: 0.08 MB I/O buffer size: 131072 bytes Time: 0.749 sec (0 m 0 s) 以上就是简短说明，更详细的就看看官方的文档吧！
