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Search for a File and get the name

Search for a File and get the name

Search for a File and get the name

Hi everybody,
I am new Fortran user. I have written a Subroutine which opens an Input file in the current work directory and reads some data from this file. The Problem is that the Name of the input file changes each time but the extension is always .inp. Is is possible in Fortran 77 to get the file name automatically and open the file without changing the name each time in READ statement?
Any answer is really appreciated.

RE: Search for a File and get the name

You'll need something like this so start.

CODE --> processdata.f

program main
      character(len=32):: arg
      integer:: numarg
! print arguments from the command line
      numarg = command_argument_count()
      print *, 'Num arg ', numarg
      do nn = 1, numarg
         call get_command_argument(nn, arg)
         print*, 'arg ', nn, ' = ', arg
      end do
Next, it depends on which OS you are using. All This does is print the command line arguments. This can be used as the filename. To run it from windows, you will need a script that looks something like this

CODE --> run.bat

for %%i in (*.inp) do processdata %%i 

RE: Search for a File and get the name

Forgot to add that you use the argument in the first program as the file to be opened.

RE: Search for a File and get the name

Thank you so much for your replay. But you have written the code in Fortran 90 I think (?). By the way I could solve the problem, acquiring the name of the job directly from the software which the subroutine s written for. Thanks a lot again.

RE: Search for a File and get the name

It is F77: just a cut and paste problem that put the program bit in column 1. This one works on GNU and Silverfrost. Other manufacturers may have their own version of it for F77.

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