AVG Linux Free Edition - Do not exist anymore
Tested in Feisty x86
For Ubuntu 64-bit: http://ubuntuforums.org/showthread.php?p=3840641
This guide have been totally rewritten due to the support of an avg.deb package.
If you're looking for Anti-virus to protect Windows OS, network, servers etc. via your Linux system, you might use this instead: HOWTO: Install F-Prot anti-virus
This one is for paranoid single home users
NOTE: It can only scan, no more no less!
Q: Is viruses, trojans and malware a threat to a linux system as in Windows?
A: No, there's a very few viruses to linux and the way a Linux/unix is build up makes it difficult to do any serious damage to the system, in fact I've never heard from people who got their Linux/unix system infected.
Q: So why install a anti-virus application/program?
A: For an ordinary Linux Home user with only one OS system their's no need for Anti-virus, but people who's running network, server or dual booting with win OS this tool can be very handy to scan and delete viruses.
Q: I'm a home user only running Linux do I need it?
A: No, a firewall is way better as protection in that case.
Make sure that your sourcelist is set up correctly. If you are in doubt make a search on the forum.
Download The Free AVG Advisor from here (.deb) to your Desktop.
sudo dpkg -i avg75fld-r45-a0973.i386.deb
Making a launcher to start AVG
sudo rm -r /usr/share/applications/avggui.desktop
sudo nano /usr/share/applications/avg.desktop
save and exit.
Exec=gksudo avggui &
You can now start AVG by going to Applications tab ---> System Tools.
If people want to discuss security about virus' and firewall if it needed or not, also a good place to see peoples opinion on this matter: http://ubuntuforums.org/showthread.php?t=131616