Fortran compilation on Linux

1. gfortran
Type

fortran yourfile.f90 -o yourfile.x


Then, it will create yourfile.x in the same directory.
Simply type yourfile.x will execute it.

See more examples at https://gcc.gnu.org/wiki/GFortranGettingStarted

2. Intel Fortran
Students as well as instructors can receive free copy of intel compilers at https://software.intel.com/en-us/qualify-for-free-software/student
Once you installed it, you should put the following lines in your .cshrc file. for c shell.
If you use b shell, compilervars.csh should be replaced with compilervars.sh.


<install_dir>/bin/compilervars.csh intel64
where <install_dir> is the directory structure containing the compiler /bin directory
The default path for <install_dir> is /opt/intel/
setenv LD_LIBRARY_PATH "/usr/lib64"
set path=( $path /opt/intel/bin )


After this, you should run .cshrc by typing

   source .cshrc

Then you can compile your file as

  ifort yourfile.f90 -o yourfile.x


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