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I've decided to use ClamTk on my Ubuntu, the problem is that it just simply wont update the antivirus engine and the GUI version from the software itself.

What is the command that I could use in the terminal for the upgrade?

(By the way, does anyone know if ClamTK is a decent antivirus software? It is listed as Nº1 on the internet.)

Is there a difference between ClamAV and ClamTk?

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ClamAV is a cross-platform Antivirus software that is compatible with linux, mac, and windows. it does not have a GUI. ClamTK is a linux-specific Antivirus software. it is a GUI version of ClamAV And I don't think you need an Antivirus Software in Ubuntu. –  Emerson Hsieh Mar 21 '12 at 13:16
    
This question may be better split up into multiple questions. –  WarriorIng64 Mar 21 '12 at 13:21
    
@WarriorIng64 not, its cool, the OP is just confused. –  Bruno Pereira Mar 21 '12 at 13:25
    
See here for details on updating signatures: Help documentation –  user51561 Mar 21 '12 at 22:28

1 Answer 1

up vote 11 down vote accepted

ClamTK is the graphical interface for ClamAV, you cannot use ClamTk without having ClamAV installed previously.

Once installed ClamAV will run in the background as a daemon and you can use the ClamTk interface in Linux to interact with it.

The ClamAV database is automatically updated via the running clamav-freshclam daemon started by the /etc/init.d/clamav-freshclam init script, there is no actual need to update it manually.

It is controlled by the /etc/clamav/freshclam.conf with a default configuration of checking for a new database every 1 hour

# Check for new database 24 times a day
Checks 24
DatabaseMirror db.local.clamav.net
DatabaseMirror database.clamav.net

To force update the ClamAV virus database in the terminal you can use the command

sudo freshclam

ClamAV is definitely a good anti virus software, for a list and more information about anti virus for Ubuntu please have a look at any of the following posts

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Bruno, it's impossible to update this software. :) None of the commands work on it. Thanks anyway. –  Elysium Mar 21 '12 at 23:30
    
@Elysium going to give it a go and let you know tonight. –  Bruno Pereira Mar 22 '12 at 5:22
    
@Elysium I edited the answer with some more information, you cannot update the ClamAV database using ClamTk, it is done automatically via the freashclam daemon or you can force the update with sudo freshclam. –  Bruno Pereira Mar 25 '12 at 21:00

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