gfortran 4:7.3.0-3ubuntu2 / usr / bin / x86_64-linux-gnu-gfortran

/usr/bin/x86_64-linux-gnu-gfortran is in gfortran 4:7.3.0-3ubuntu2.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/bin/gfortran-7