The task is to programmatically obtain the name used to invoke the program. (For example determine whether the user ran "python hello.py", or "python hellocaller.py", a program importing the code from "hello.py".)

Sometimes a multiline shebang is necessary in order to provide the script name to a language's internal ARGV.

See also Command-line arguments

Examples from GitHub.

public class ScriptName {
	public static void main(String[] args) {
		String program = System.getProperty("sun.java.command").split(" ")[0];
		System.out.println("Program: " + program);
	}
}