/usr/ is in octave-octcdf 1.1.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/octave/
/usr/lib/x86_64-linux-gnu/octave/packages/
/usr/lib/x86_64-linux-gnu/octave/packages/octcdf-1.1.7/
/usr/lib/x86_64-linux-gnu/octave/packages/octcdf-1.1.7/x86_64-pc-linux-gnu-api-v49+/
/usr/lib/x86_64-linux-gnu/octave/packages/octcdf-1.1.7/x86_64-pc-linux-gnu-api-v49+/netcdf.oct
/usr/lib/x86_64-linux-gnu/octave/packages/octcdf-1.1.7/x86_64-pc-linux-gnu-api-v49+/PKG_ADD
/usr/share/
/usr/share/doc/
/usr/share/doc/octave-octcdf/
/usr/share/doc/octave-octcdf/NEWS.gz
/usr/share/doc/octave-octcdf/copyright
/usr/share/doc/octave-octcdf/changelog.Debian.gz
/usr/share/octave/packages/
/usr/share/octave/packages/octcdf-1.1.7/
/usr/share/octave/packages/octcdf-1.1.7/ncfillval.m
/usr/share/octave/packages/octcdf-1.1.7/@ncdim/
/usr/share/octave/packages/octcdf-1.1.7/@ncdim/name.m
/usr/share/octave/packages/octcdf-1.1.7/@ncdim/isrecord.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/att.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/datatype.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/dim.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/name.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/autonan.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/autoscale.m
/usr/share/octave/packages/octcdf-1.1.7/@ncvar/fillval.m
/usr/share/octave/packages/octcdf-1.1.7/example_opendap.m
/usr/share/octave/packages/octcdf-1.1.7/example_netcdf.m
/usr/share/octave/packages/octcdf-1.1.7/ncdouble.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/att.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/redef.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/endef.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/dim.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/name.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/sync.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/close.m
/usr/share/octave/packages/octcdf-1.1.7/@ncfile/var.m
/usr/share/octave/packages/octcdf-1.1.7/ncdump.m
/usr/share/octave/packages/octcdf-1.1.7/doc-cache
/usr/share/octave/packages/octcdf-1.1.7/ncint.m
/usr/share/octave/packages/octcdf-1.1.7/packinfo/
/usr/share/octave/packages/octcdf-1.1.7/packinfo/DESCRIPTION
/usr/share/octave/packages/octcdf-1.1.7/packinfo/INDEX
/usr/share/octave/packages/octcdf-1.1.7/packinfo/NEWS
/usr/share/octave/packages/octcdf-1.1.7/packinfo/.autoload
/usr/share/octave/packages/octcdf-1.1.7/ncchar.m
/usr/share/octave/packages/octcdf-1.1.7/ncbyte.m
/usr/share/octave/packages/octcdf-1.1.7/nclong.m
/usr/share/octave/packages/octcdf-1.1.7/@ncatt/
/usr/share/octave/packages/octcdf-1.1.7/@ncatt/datatype.m
/usr/share/octave/packages/octcdf-1.1.7/@ncatt/name.m
/usr/share/octave/packages/octcdf-1.1.7/ncshort.m
/usr/share/octave/packages/octcdf-1.1.7/ncfloat.m
/usr/share/octave/packages/octcdf-1.1.7/nctest.m