running a program using a data file

[therukus]

I am using Linux, and after I compile my program, which is supposed to read information from a data file, I don't know what the command is to include the file. What do I type after a.out to include the file?

 

[xwb]

You have to get the filename first. There is an intrinsic called getarg. eg

      program main
      character*40 arg
      integer i
      intrinsic getarg
      do 10 i = 1, 10, 1
          call getarg (i, arg)
!         check for the last parameter
          if (arg(1:1) .eq. ' ') goto 20
          print *, 'Arg ', i, ' = ', arg
10    continue
20    continue
      stop
      end

Basically use getarg to get the filename and then feed it into the open command to access your datafile.