User's Guide

Splitting Subprograms into Individual Files (fsplit)

The fsplit command splits the specified Fortran source program files into several files. You should only use fsplit with FORTRAN 77 programs.

$ cat fsplit.f
        subroutine sub1
                print *,'Hello world'
        end
 
        subroutine sub2
                print *,'Goodbye'
        end
 
        program main
                call sub1
                call sub2
        end
$ fsplit fsplit.f
sub1.f
sub2.f
main.f