/usr/share/doc/freefem3d/examples/ is in freefem3d 1.0pre10-3.4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/freefem3d/examples/elasticity.ff
/usr/share/doc/freefem3d/examples/elasticity.pov
/usr/share/doc/freefem3d/examples/hydrostatic.ff
/usr/share/doc/freefem3d/examples/hydrostatic.pov
/usr/share/doc/freefem3d/examples/laplacian-lens.pov
/usr/share/doc/freefem3d/examples/laplacian-spike.pov
/usr/share/doc/freefem3d/examples/natural-convection.ff
/usr/share/doc/freefem3d/examples/natural-convection.pov
/usr/share/doc/freefem3d/examples/navier-stokes.ff
/usr/share/doc/freefem3d/examples/navier-stokes.pov
/usr/share/doc/freefem3d/examples/potential-fluid-flow.ff
/usr/share/doc/freefem3d/examples/potential-fluid-flow.pov
/usr/share/doc/freefem3d/examples/stokes.ff
/usr/share/doc/freefem3d/examples/stokes.pov
/usr/share/doc/freefem3d/examples/temperature.ff
/usr/share/doc/freefem3d/examples/temperature.pov
/usr/share/doc/freefem3d/examples/test.ff
/usr/share/doc/freefem3d/examples/test.pov