No, you have to add the "ubuntu - 16.04 - updates" repo to your repo list and then the first time INSTALL the ClamAV package, as provided BY that repo.

Just keep doing what you've been doing. Whatever update method you've been using until now, you are doing it right, because your Clam is at the latest LTS (long-term support) version 0.100.3. Some users prefer the GUI software manager application (I forget what it's called in the menu; it's been a while since I used Ubuntu) while other users prefer terminal commands like:

Your software is not outdated. Clamav 0.100.3 and 0.101.2 were released on the same day and contain the same security patches: https://blog.clamav.net/2019/03/clam...ches-have.html

0.100.3 was released March 26 and appeared in the 'xenial' repository on April 4. The Ubuntu developers take care of their users and have a reasonable response time (about 1 week in this case). Ubuntu LTS users get stable and secure LTS software; that's the beauty of it!

There are other distros like Arch Linux that give you "rolling" updates. Arch Linux users got the clamav 0.101.2 update on March 27 (1 day). https://www.archlinux.org/packages/extra/x86_64/clamav/

I'm confused.
You started this thread because you were seeking help about updating ClamAV. If you've been doing updates for two years from the cli, just keep doing what you've been doing. I don't understand what you're asking for help with, now.

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Okay, when I first installed Ubuntu I researched ClamAV. I found a “how to page” on Linux Lite’s site. Among other things it had these codes:

sudo freshclam

sudo rm -rf /var/log/clamav/freshclam.log

sudo clamscan -r -i / | grep FOUND >> /home/youruser/virus-scan-report.txt

On this page:
https://www.linuxliteos.com/manual/t...html#antivirus

I forgot that Ubuntu update manager provides updates for said antivirus. I guess I should have stuck to documention for my distro.

To “@ehartman”
I don’t know how to do what you suggested. How do I add that line to my repo?

To "@scasey"
I just want my updates to be automatic.

I do not know, I never had to do administer a ubuntu system and it's even been some 5 years
since I worked with people that had one.
The university I (used to) work for never supported ubuntu, so we didn't carry the repo's for it either. They do carry the iso's, so people can install it on their own laptops etc, but from then on they're on their own.

Ok. That's a different question than you asked in your OP. I don't know ubuntu either.
You should be able to find specific instruction on the 'net about how ubuntu repositories work and how to use them, including how to add repositories to you configuration. Maybe start with the man pages? Usually a good place.

Generally speaking, one shouldn't mix methods for a given program. If you've been maintaining clamav manually, you'll (probably) need to remove it before you start maintaining it from the repos. Don't do that, of course, until you figure out how to use the repos to maintain it.

I don't love these random instructions you are following. My two main reservations are: 1) 'sudo rm -rf' is dangerous; one typo and you're in serious trouble. 2) I don't understand the need to delete the log file; seems to me log files are a useful record of what's been done to your computer.

Please don't add any lines to your repos based on @ehartman's advice! They are well-intentioned but by their own admission are unfamiliar with Ubuntu. It is not good advice.

Regarding your "I just want my updates to be automatic" question, I can think of two easy ways: 1) You could make a 'crontab' job to run 'freshclam' at regular intervals. 2) You could write a simple bash script that combines 'freshclam' and 'clamscan' into a single command, so that every time you run the script, you are both updating and scanning with a single command.

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You're right. It is a different question than the one I asked in my OP. Maybe I should mark this thread as solved.

The tutorial on https://www.linuxliteos.com/ said to run the sudo rm -rf command if didn't work. It hasn't since the first time I ran it I think. I'll take that word of warning about adding lines to my repos. On another note, I don't know if I'm ready to make a 'crontab" or write a script. I ran the rm -rf command all these years without even thinking about what it did. I agree log files can be useful. I've heard caution in this thread about updating the way I've been doing it. Is there any downside to making crontab or a bash script?