/usr/share/octave/4.0.0/m/deprecated/ is in octave-common 4.0.0-3ubuntu9.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/4.0.0/m/deprecated/PKG_ADD
/usr/share/octave/4.0.0/m/deprecated/bicubic.m
/usr/share/octave/4.0.0/m/deprecated/default_save_options.m
/usr/share/octave/4.0.0/m/deprecated/delaunay3.m
/usr/share/octave/4.0.0/m/deprecated/dump_prefs.m
/usr/share/octave/4.0.0/m/deprecated/find_dir_in_path.m
/usr/share/octave/4.0.0/m/deprecated/finite.m
/usr/share/octave/4.0.0/m/deprecated/fmod.m
/usr/share/octave/4.0.0/m/deprecated/fnmatch.m
/usr/share/octave/4.0.0/m/deprecated/gen_doc_cache.m
/usr/share/octave/4.0.0/m/deprecated/gmap40.m
/usr/share/octave/4.0.0/m/deprecated/interp1q.m
/usr/share/octave/4.0.0/m/deprecated/isequalwithequalnans.m
/usr/share/octave/4.0.0/m/deprecated/isstr.m
/usr/share/octave/4.0.0/m/deprecated/java_convert_matrix.m
/usr/share/octave/4.0.0/m/deprecated/java_debug.m
/usr/share/octave/4.0.0/m/deprecated/java_invoke.m
/usr/share/octave/4.0.0/m/deprecated/java_new.m
/usr/share/octave/4.0.0/m/deprecated/java_unsigned_conversion.m
/usr/share/octave/4.0.0/m/deprecated/javafields.m
/usr/share/octave/4.0.0/m/deprecated/javamethods.m
/usr/share/octave/4.0.0/m/deprecated/loadaudio.m
/usr/share/octave/4.0.0/m/deprecated/luinc.m
/usr/share/octave/4.0.0/m/deprecated/mouse_wheel_zoom.m
/usr/share/octave/4.0.0/m/deprecated/nfields.m
/usr/share/octave/4.0.0/m/deprecated/octave_tmp_file_name.m
/usr/share/octave/4.0.0/m/deprecated/playaudio.m
/usr/share/octave/4.0.0/m/deprecated/re_read_readline_init_file.m
/usr/share/octave/4.0.0/m/deprecated/read_readline_init_file.m
/usr/share/octave/4.0.0/m/deprecated/saveaudio.m
/usr/share/octave/4.0.0/m/deprecated/saving_history.m
/usr/share/octave/4.0.0/m/deprecated/setaudio.m
/usr/share/octave/4.0.0/m/deprecated/syl.m
/usr/share/octave/4.0.0/m/deprecated/usage.m