ClamAV is a good tool for virus scanning linux workstations and servers.
It can be installed using the command:
sudo apt-get install clamav
The definitions can be updated with:
The whole system can be scanned using:
clamscan -r --bell -i /
This will only display infected files and rings a bell if any are found during the scan.
If lots of output is produced, or you need to store a log the output can be redirected to file…
clamscan -r --bell -i / > ~/scan.log