/usr/share/octave/packages/ is in octave-octcdf 1.0.13-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/3.2/
/usr/share/octave/packages/3.2/octcdf-1.0.13/
/usr/share/octave/packages/3.2/octcdf-1.0.13/doc-cache
/usr/share/octave/packages/3.2/octcdf-1.0.13/example_netcdf.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/example_opendap.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncbyte.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncchar.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncdouble.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncdump.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncfloat.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncint.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/nclong.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/ncshort.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/nctest.m
/usr/share/octave/packages/3.2/octcdf-1.0.13/packinfo/
/usr/share/octave/packages/3.2/octcdf-1.0.13/packinfo/.autoload
/usr/share/octave/packages/3.2/octcdf-1.0.13/packinfo/DESCRIPTION
/usr/share/octave/packages/3.2/octcdf-1.0.13/packinfo/INDEX