/usr/share/octave/packages/ is in octave-bim 1.1.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/bim-1.1.3/
/usr/share/octave/packages/bim-1.1.3/bim1a_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.3/bim1a_advection_upwind.m
/usr/share/octave/packages/bim-1.1.3/bim1a_laplacian.m
/usr/share/octave/packages/bim-1.1.3/bim1a_reaction.m
/usr/share/octave/packages/bim-1.1.3/bim1a_rhs.m
/usr/share/octave/packages/bim-1.1.3/bim1c_elem_to_nodes.m
/usr/share/octave/packages/bim-1.1.3/bim1c_norm.m
/usr/share/octave/packages/bim-1.1.3/bim2a_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.3/bim2a_advection_upwind.m
/usr/share/octave/packages/bim-1.1.3/bim2a_boundary_mass.m
/usr/share/octave/packages/bim-1.1.3/bim2a_laplacian.m
/usr/share/octave/packages/bim-1.1.3/bim2a_reaction.m
/usr/share/octave/packages/bim-1.1.3/bim2a_rhs.m
/usr/share/octave/packages/bim-1.1.3/bim2c_global_flux.m
/usr/share/octave/packages/bim-1.1.3/bim2c_intrp.m
/usr/share/octave/packages/bim-1.1.3/bim2c_mesh_properties.m
/usr/share/octave/packages/bim-1.1.3/bim2c_norm.m
/usr/share/octave/packages/bim-1.1.3/bim2c_pde_gradient.m
/usr/share/octave/packages/bim-1.1.3/bim2c_tri_to_nodes.m
/usr/share/octave/packages/bim-1.1.3/bim2c_unknowns_on_side.m
/usr/share/octave/packages/bim-1.1.3/bim3a_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.3/bim3a_boundary_mass.m
/usr/share/octave/packages/bim-1.1.3/bim3a_laplacian.m
/usr/share/octave/packages/bim-1.1.3/bim3a_osc_advection_diffusion.m
/usr/share/octave/packages/bim-1.1.3/bim3a_osc_laplacian.m
/usr/share/octave/packages/bim-1.1.3/bim3a_reaction.m
/usr/share/octave/packages/bim-1.1.3/bim3a_rhs.m
/usr/share/octave/packages/bim-1.1.3/bim3c_global_flux.m
/usr/share/octave/packages/bim-1.1.3/bim3c_intrp.m
/usr/share/octave/packages/bim-1.1.3/bim3c_mesh_properties.m
/usr/share/octave/packages/bim-1.1.3/bim3c_norm.m
/usr/share/octave/packages/bim-1.1.3/bim3c_pde_gradient.m
/usr/share/octave/packages/bim-1.1.3/bim3c_tri_to_nodes.m
/usr/share/octave/packages/bim-1.1.3/bim3c_unknowns_on_faces.m
/usr/share/octave/packages/bim-1.1.3/bimu_bernoulli.m
/usr/share/octave/packages/bim-1.1.3/bimu_logm.m
/usr/share/octave/packages/bim-1.1.3/doc-cache
/usr/share/octave/packages/bim-1.1.3/packinfo/
/usr/share/octave/packages/bim-1.1.3/packinfo/.autoload
/usr/share/octave/packages/bim-1.1.3/packinfo/DESCRIPTION
/usr/share/octave/packages/bim-1.1.3/packinfo/INDEX
/usr/share/octave/packages/bim-1.1.3/packinfo/NEWS
/usr/share/octave/packages/bim-1.1.3/private/
/usr/share/octave/packages/bim-1.1.3/private/__osc_local_laplacian__.m