Following the advise of an answer in Ask Ubuntu, I downloaded and ran a script with a URL starting by http://goo.gl/
Is it risky to use such file? could it be a virus or something else?
If yes, what should I do?
I followed this answer, and did
wget -O amd-driver-installer-12-4-x86.x86_64.run http://goo.gl/VGYWP
chmod +x amd-driver-installer-12-4-x86.x86_64.run
./amd-driver-installer-12-4-x86.x86_64.run --extract driver