emilemma , as you point out:
"...ubu 12.04 and the top most menu that shows the tools option does not display"
But:
it does display inlinux mint debian...
Raise the issue with 'ubu devs' is possibly an option. Their may be a package discrepancy, who knows.
![Sad :(](https://forum.avast.com/Smileys/default/sad.gif)
Avast! does it's best to be as broad an AV for Linux distros as possible. As you report it displays properly on Linux Mint.
Did you try using the command Line ?
No quotes:"avast" (Scans "home/user/")
"avast -a" " "
"avast --testall" (Default) test all files, regardless of extension or content (default)
It's actually very fast !
![Wink ;)](https://forum.avast.com/Smileys/default/wink.gif)