Default: no Notify a running clamd(8) to reload its database after a download has occurred. When enabled freshclam will submit statistics to the Clam AV Project about the latest virus detections in your environment.Clam AV can only detect viruses and move any infected files into a quarantined folder; it cannot remove them from files.Default: database.By default freshclam will keep the local databases (.cld) uncompressed to make their handling faster.With this option you can enable the compression; the change will take effect with the next database update. See clamd.conf(5)'s option Self Check for how clamd(8) handles database updates in this case.
Clam AV has official support in Ubuntu for packages installed from the Main repository. In case you are recursively scanning the whole /home folder (or even the whole system) from a terminal emulator on your GUI, possibly there will be lots of files.
In Ubuntu Linux, clamav signatures are located in /var/lib/clamav/.
Is anyone else having problems updating the virus signatures?
The main purpose of this software is the integration with mail servers (attachment scanning).
The package provides a flexible and scalable multi-threaded daemon in the clamav-daemon package, a command-line scanner in the clamav package, and a tool for automatic updating via the Internet in the clamav-freshclam package.