Antivirus for Linux? Are you kidding? I know it sound a bit funny but installing Antivirus on Linux system is necessary. The new version of Clam AntiVirus 0.98.2 for Linux is now available for download. Clam AntiVirus is a free and open source command line antivirus scanner for Linux. It does not have GUI but the documentation of this Clam AntiVirus is pretty complete and easy to use it even via command line.