What's the safest unix execution?

[SharphSonirtm]

What is the safest method to initiate the execution of another executable while passing parameters on a Unix-based operating system such as macOS or Linux?

[SharphSonirtm]

It uses information in a file commonly located at /etc/magic (I kid you not). You can find out more about the format of this file and the file command’s heuristics here, or looking at the man chatrandom echat pages for file or magic.