/usr/ is in octave-miscellaneous 1.2.1-2build2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/octave-miscellaneous/
/usr/share/doc/octave-miscellaneous/copyright
/usr/share/doc/octave-miscellaneous/NEWS.gz
/usr/share/doc/octave-miscellaneous/changelog.Debian.gz
/usr/share/octave/
/usr/share/octave/packages/
/usr/share/octave/packages/miscellaneous-1.2.1/
/usr/share/octave/packages/miscellaneous-1.2.1/normr.m
/usr/share/octave/packages/miscellaneous-1.2.1/truncate.m
/usr/share/octave/packages/miscellaneous-1.2.1/textable.m
/usr/share/octave/packages/miscellaneous-1.2.1/csv2latex.m
/usr/share/octave/packages/miscellaneous-1.2.1/publish.m
/usr/share/octave/packages/miscellaneous-1.2.1/read_options.m
/usr/share/octave/packages/miscellaneous-1.2.1/match.m
/usr/share/octave/packages/miscellaneous-1.2.1/gameoflife.m
/usr/share/octave/packages/miscellaneous-1.2.1/private/
/usr/share/octave/packages/miscellaneous-1.2.1/private/strsplit.m
/usr/share/octave/packages/miscellaneous-1.2.1/hilbert_curve.m
/usr/share/octave/packages/miscellaneous-1.2.1/clip.m
/usr/share/octave/packages/miscellaneous-1.2.1/colorboard.m
/usr/share/octave/packages/miscellaneous-1.2.1/solvesudoku.m
/usr/share/octave/packages/miscellaneous-1.2.1/packinfo/
/usr/share/octave/packages/miscellaneous-1.2.1/packinfo/.autoload
/usr/share/octave/packages/miscellaneous-1.2.1/packinfo/INDEX
/usr/share/octave/packages/miscellaneous-1.2.1/packinfo/NEWS
/usr/share/octave/packages/miscellaneous-1.2.1/packinfo/DESCRIPTION
/usr/share/octave/packages/miscellaneous-1.2.1/laguerrepoly.m
/usr/share/octave/packages/miscellaneous-1.2.1/hermitepoly.m
/usr/share/octave/packages/miscellaneous-1.2.1/reduce.m
/usr/share/octave/packages/miscellaneous-1.2.1/legendrepoly.m
/usr/share/octave/packages/miscellaneous-1.2.1/physical_constant.m
/usr/lib/
/usr/share/octave/packages/miscellaneous-1.2.1/normc.m
/usr/share/octave/packages/miscellaneous-1.2.1/asci.m
/usr/share/octave/packages/miscellaneous-1.2.1/chebyshevpoly.m
/usr/share/octave/packages/miscellaneous-1.2.1/peano_curve.m
/usr/share/octave/packages/miscellaneous-1.2.1/rolldices.m
/usr/share/octave/packages/miscellaneous-1.2.1/ascii.m
/usr/share/octave/packages/miscellaneous-1.2.1/infoskeleton.m
/usr/share/octave/packages/miscellaneous-1.2.1/physical_constant.py
/usr/share/octave/packages/miscellaneous-1.2.1/slurp_file.m
/usr/share/octave/packages/miscellaneous-1.2.1/nze.m
/usr/share/octave/packages/miscellaneous-1.2.1/units.m
/usr/share/octave/packages/miscellaneous-1.2.1/z_curve.m
/usr/share/octave/packages/miscellaneous-1.2.1/doc-cache
/usr/share/octave/packages/miscellaneous-1.2.1/zagzig.m
/usr/share/octave/packages/miscellaneous-1.2.1/lauchli.m
/usr/share/octave/packages/miscellaneous-1.2.1/zigzag.m
/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/miscellaneous-1.2.1/
/usr/lib/x86_64-linux-gnu/octave/packages/miscellaneous-1.2.1/x86_64-pc-linux-gnu-api-v50+/
/usr/lib/x86_64-linux-gnu/octave/packages/miscellaneous-1.2.1/x86_64-pc-linux-gnu-api-v50+/sample.oct
/usr/lib/x86_64-linux-gnu/octave/packages/miscellaneous-1.2.1/x86_64-pc-linux-gnu-api-v50+/cell2cell.oct
/usr/lib/x86_64-linux-gnu/octave/packages/miscellaneous-1.2.1/x86_64-pc-linux-gnu-api-v50+/PKG_ADD
/usr/lib/x86_64-linux-gnu/octave/packages/miscellaneous-1.2.1/x86_64-pc-linux-gnu-api-v50+/partint.oct
/usr/lib/x86_64-linux-gnu/octave/packages/miscellaneous-1.2.1/x86_64-pc-linux-gnu-api-v50+/text_waitbar.oct