These are programs that run from portable devices like discs or flash drives, that can scan a hard drive for viruses without starting the operating system at all.
This is also good for servers, because they will most likely want to run antivirus scans to prevent the spread of viruses to whichever clients connect to the server.
The Intelligent Updater is an executable file that can be used to update virus definitions for the Symantec Endpoint Protection Windows client.
To update the definitions, run either the Daily Certified or Rapid Release Intelligent Updater on the local computer.
The recursive flag “-r” is important because otherwise Clam would simply scan any files within the user folder, but nothing that’s inside a folder inside the user folder.
Of course, if you need to scan a different directory, you can adjust the path appropriately.