In FORTRAN 77, command line arguments can be passed using the `getarg` subroutine, similar to how it's done in C/C++. Specifically, the Intel Fortran compiler allows the use of `call getarg(1, buffer)` to retrieve the first command line argument into a buffer. This buffer can then be read into a variable using `read(buffer, *)`. For example, executing the program with `$ ./my_program abc` will set the variable to "abc". For further details, the Intel documentation provides additional insights on using `getarg`.
