I would change your Perl program to just output these strings to STDOUT instead of to a file. You have an easy format for FORTRAN to parse. The FORTRAN program reads from STDIN and does what it does and outputs to STDOUT. Use the OS to "pipe" your Perl output(STDOUT) into the FORTRAN program's STDIN. 

#shell command...
yourPerl.pl | FortranProg.exe

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Fortran remains the "numero uno number cruncher" language. Many scientific programs are written in Fortran and use this IO method of STDIN to STDOUT "filters":
cat data | Fortran1 | Fortran2 | Fortran3, etc.

To make a temp file between your Perl and Fortran, also use the OS: 

yourPerl.pl > tempfile
Fortran <tempfile >outputfile
del tempfile

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Fortran can process command line args just like 'C' or Perl. 
perlprog | fortan -gain 3dB

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PS: FORTRAN is an acronym and should be spelled in all caps. I got lazy above.

In reply to Re: Data Transfer to Fortran by Marshall
in thread Data Transfer to Fortran by cheech

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