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.

 
MODULE ProgramName;
IMPORT 
  NPCT:Args,
  Out;
BEGIN
  Out.Object("Program name: " + Args.Get(0));Out.Ln
END ProgramName.
 