Why using curl | sudo sh is not advised?

Question

While I was reading the introduction to the Rust programming language, I came across the installation method which asks to use the following command

curl -sf         


        

Answer 1

Because you are giving root access to whatever script you are executing. It can do a wide variety of nasty things.

If Rust site is ever compromised and that script gets a tiny piece that installs malware silently, you wouldn't know, without inspecting the script first.