/usr/share/octave/packages/ is in octave-bim 1.1.5-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/bim-1.1.5/
/usr/share/octave/packages/bim-1.1.5/bim1a_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.5/bim1a_advection_upwind.m
/usr/share/octave/packages/bim-1.1.5/bim1a_axisymmetric_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.5/bim1a_axisymmetric_advection_upwind.m
/usr/share/octave/packages/bim-1.1.5/bim1a_axisymmetric_laplacian.m
/usr/share/octave/packages/bim-1.1.5/bim1a_axisymmetric_reaction.m
/usr/share/octave/packages/bim-1.1.5/bim1a_axisymmetric_rhs.m
/usr/share/octave/packages/bim-1.1.5/bim1a_laplacian.m
/usr/share/octave/packages/bim-1.1.5/bim1a_reaction.m
/usr/share/octave/packages/bim-1.1.5/bim1a_rhs.m
/usr/share/octave/packages/bim-1.1.5/bim1c_elem_to_nodes.m
/usr/share/octave/packages/bim-1.1.5/bim1c_norm.m
/usr/share/octave/packages/bim-1.1.5/bim2a_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.5/bim2a_advection_upwind.m
/usr/share/octave/packages/bim-1.1.5/bim2a_axisymmetric_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.5/bim2a_axisymmetric_advection_upwind.m
/usr/share/octave/packages/bim-1.1.5/bim2a_axisymmetric_boundary_mass.m
/usr/share/octave/packages/bim-1.1.5/bim2a_axisymmetric_laplacian.m
/usr/share/octave/packages/bim-1.1.5/bim2a_axisymmetric_reaction.m
/usr/share/octave/packages/bim-1.1.5/bim2a_axisymmetric_rhs.m
/usr/share/octave/packages/bim-1.1.5/bim2a_boundary_mass.m
/usr/share/octave/packages/bim-1.1.5/bim2a_laplacian.m
/usr/share/octave/packages/bim-1.1.5/bim2a_reaction.m
/usr/share/octave/packages/bim-1.1.5/bim2a_rhs.m
/usr/share/octave/packages/bim-1.1.5/bim2c_global_flux.m
/usr/share/octave/packages/bim-1.1.5/bim2c_intrp.m
/usr/share/octave/packages/bim-1.1.5/bim2c_mesh_properties.m
/usr/share/octave/packages/bim-1.1.5/bim2c_norm.m
/usr/share/octave/packages/bim-1.1.5/bim2c_pde_gradient.m
/usr/share/octave/packages/bim-1.1.5/bim2c_tri_to_nodes.m
/usr/share/octave/packages/bim-1.1.5/bim2c_unknowns_on_side.m
/usr/share/octave/packages/bim-1.1.5/bim3a_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.5/bim3a_boundary_mass.m
/usr/share/octave/packages/bim-1.1.5/bim3a_laplacian.m
/usr/share/octave/packages/bim-1.1.5/bim3a_osc_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.5/bim3a_osc_laplacian.m
/usr/share/octave/packages/bim-1.1.5/bim3a_reaction.m
/usr/share/octave/packages/bim-1.1.5/bim3a_rhs.m
/usr/share/octave/packages/bim-1.1.5/bim3c_global_flux.m
/usr/share/octave/packages/bim-1.1.5/bim3c_intrp.m
/usr/share/octave/packages/bim-1.1.5/bim3c_mesh_properties.m
/usr/share/octave/packages/bim-1.1.5/bim3c_norm.m
/usr/share/octave/packages/bim-1.1.5/bim3c_pde_gradient.m
/usr/share/octave/packages/bim-1.1.5/bim3c_tri_to_nodes.m
/usr/share/octave/packages/bim-1.1.5/bim3c_unknowns_on_faces.m
/usr/share/octave/packages/bim-1.1.5/bimu_bernoulli.m
/usr/share/octave/packages/bim-1.1.5/bimu_logm.m
/usr/share/octave/packages/bim-1.1.5/doc-cache
/usr/share/octave/packages/bim-1.1.5/packinfo/
/usr/share/octave/packages/bim-1.1.5/packinfo/DESCRIPTION
/usr/share/octave/packages/bim-1.1.5/packinfo/INDEX
/usr/share/octave/packages/bim-1.1.5/packinfo/NEWS
/usr/share/octave/packages/bim-1.1.5/private/
/usr/share/octave/packages/bim-1.1.5/private/__osc_local_laplacian__.m