Question

In a linux script, the line ____ is important because it identifies the file as a script.

Answer 1

The closest line to that would be the first line:


#!/bin/bash

echo "Hello World!"


BTW, the "#!" is referred to as a she-bang. When those are the first characters executed, the (requires an absolute path) program that follows is launched, and the rest of this file is given to it as data. To run this like a program, the execute permissions need to be set ( chmod 0755 script.sh ).