/usr/share/octave/packages/ocs-0.1.5/sbn/ is in octave-ocs 0.1.5-6.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/ocs-0.1.5/sbn/Mcapacitors.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mcurrentsources.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mdiode.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Minductors.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mnmosfet.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mpdesympnjunct.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mpmosfet.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mresistors.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mshichmanhodgesmosfet.m
/usr/share/octave/packages/ocs-0.1.5/sbn/Mtdnmos.cir
/usr/share/octave/packages/ocs-0.1.5/sbn/Mtdnmos.nms
/usr/share/octave/packages/ocs-0.1.5/sbn/Mtdpmos.cir
/usr/share/octave/packages/ocs-0.1.5/sbn/Mtdpmos.nms
/usr/share/octave/packages/ocs-0.1.5/sbn/Mvoltagesources.m
/usr/share/octave/packages/ocs-0.1.5/sbn/doc-cache