/usr/share/octave/packages/ is in octave-msh 1.0.10-5.
This file is owned by root:root, with mode 0o755.
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/usr/share/octave/packages/msh-1.0.10/
/usr/share/octave/packages/msh-1.0.10/doc-cache
/usr/share/octave/packages/msh-1.0.10/msh2m_displacement_smoothing.m
/usr/share/octave/packages/msh-1.0.10/msh2m_equalize_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh2m_geometrical_properties.m
/usr/share/octave/packages/msh-1.0.10/msh2m_gmsh.m
/usr/share/octave/packages/msh-1.0.10/msh2m_gmsh_write.m
/usr/share/octave/packages/msh-1.0.10/msh2m_jiggle_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh2m_join_structured_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh2m_mesh_along_spline.m
/usr/share/octave/packages/msh-1.0.10/msh2m_nodes_on_sides.m
/usr/share/octave/packages/msh-1.0.10/msh2m_structured_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh2m_submesh.m
/usr/share/octave/packages/msh-1.0.10/msh2m_topological_properties.m
/usr/share/octave/packages/msh-1.0.10/msh2p_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh3e_surface_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh3m_geometrical_properties.m
/usr/share/octave/packages/msh-1.0.10/msh3m_gmsh.m
/usr/share/octave/packages/msh-1.0.10/msh3m_gmsh_write.m
/usr/share/octave/packages/msh-1.0.10/msh3m_join_structured_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh3m_nodes_on_faces.m
/usr/share/octave/packages/msh-1.0.10/msh3m_structured_mesh.m
/usr/share/octave/packages/msh-1.0.10/msh3m_submesh.m
/usr/share/octave/packages/msh-1.0.10/packinfo/
/usr/share/octave/packages/msh-1.0.10/packinfo/DESCRIPTION
/usr/share/octave/packages/msh-1.0.10/packinfo/INDEX
/usr/share/octave/packages/msh-1.0.10/packinfo/NEWS