4.6.3 Command-Line Argument Intrinsics

The Fortran 2003 standard introduces three new intrinsics for processing command-line arguments and environment variables. These are:

• GET_COMMAND(command, length, status)

  Returns in command the entire command line that invoked the program.

• GET_COMMAND_ARGUMENT(number, value, length, status)

  Returns a command-line argument in value.

• GET_ENVIRONMENT_VARIABLE(name, value, length, status, trim_name)

  Return the value of an environment variable.