/usr/ is in octave-splines 1.2.9-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/octave-splines/
/usr/share/doc/octave-splines/copyright
/usr/share/doc/octave-splines/NEWS.gz
/usr/share/doc/octave-splines/changelog.Debian.gz
/usr/share/octave/
/usr/share/octave/packages/
/usr/share/octave/packages/splines-1.2.9/
/usr/share/octave/packages/splines-1.2.9/tps_val_der.m
/usr/share/octave/packages/splines-1.2.9/packinfo/
/usr/share/octave/packages/splines-1.2.9/packinfo/INDEX
/usr/share/octave/packages/splines-1.2.9/packinfo/NEWS
/usr/share/octave/packages/splines-1.2.9/packinfo/DESCRIPTION
/usr/share/octave/packages/splines-1.2.9/packinfo/CITATION
/usr/share/octave/packages/splines-1.2.9/fnder.m
/usr/share/octave/packages/splines-1.2.9/dedup.m
/usr/share/octave/packages/splines-1.2.9/fnval.m
/usr/share/octave/packages/splines-1.2.9/csapi.m
/usr/share/octave/packages/splines-1.2.9/csape.m
/usr/share/octave/packages/splines-1.2.9/tpaps.m
/usr/share/octave/packages/splines-1.2.9/csaps.m
/usr/share/octave/packages/splines-1.2.9/catmullrom.m
/usr/share/octave/packages/splines-1.2.9/tps_val.m
/usr/share/octave/packages/splines-1.2.9/doc-cache
/usr/share/octave/packages/splines-1.2.9/bin_values.m
/usr/share/octave/packages/splines-1.2.9/csaps_sel.m
/usr/share/octave/packages/splines-1.2.9/fnplt.m