Linux users can help protect their Windows-using brethren from the myriad virus infestations out in the wild with some free anti-virus tools.
It's well known among Linux users that ours is an operating system that doesn't have to worry about viruses, unlike that other OS made in Washington state that appears to be completely overrun by them. Even so, there are still very good open source anti-virus tools available to run on Linux, principally among them ClamAV. But why do people running Ubuntu need anti-virus software?
If you receive infected materials that may be sent along to Windows users, it sure would be good to prevent the transfer of virus-laden files. If you share files via Samba with people on Windows, you probably want to know if some of those are infected, just as a point of pride if nothing else. And, finally, a huge plague of Linux viruses could be unleashed upon the world sometime in the future, so it's good to be prepared (sure, it's about as likely as the dead rising from their graves to eat the brains of the living, but you never know).
And besides, it doesn't really hurt to run ClamAV on your system. The resources it takes up are miniscule, and the vast majority of the time, you'll never even know it's there. So why not?
To install ClamAV, run the following command (you'll need the universe repository enabled [Hack #60]):
sudo apt-get install clamav
This will prompt apt to download some dependencies required by clamav ...