/usr/share/scilab/modules/intersci/ is in scilab-data 5.5.2-2ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/scilab/modules/intersci/etc/
/usr/share/scilab/modules/intersci/etc/intersci.quit
/usr/share/scilab/modules/intersci/etc/intersci.start
/usr/share/scilab/modules/intersci/examples/
/usr/share/scilab/modules/intersci/examples/Makefile
/usr/share/scilab/modules/intersci/examples/Makefile.mak
/usr/share/scilab/modules/intersci/examples/README.txt
/usr/share/scilab/modules/intersci/examples/ex1.sce
/usr/share/scilab/modules/intersci/examples/ex10.sce
/usr/share/scilab/modules/intersci/examples/ex10f.f
/usr/share/scilab/modules/intersci/examples/ex10fi-l.list
/usr/share/scilab/modules/intersci/examples/ex10fi.desc
/usr/share/scilab/modules/intersci/examples/ex11.sce
/usr/share/scilab/modules/intersci/examples/ex11c.c
/usr/share/scilab/modules/intersci/examples/ex11fi.desc
/usr/share/scilab/modules/intersci/examples/ex12.sce
/usr/share/scilab/modules/intersci/examples/ex12c.c
/usr/share/scilab/modules/intersci/examples/ex12fi.desc
/usr/share/scilab/modules/intersci/examples/ex13.sce
/usr/share/scilab/modules/intersci/examples/ex13c.c
/usr/share/scilab/modules/intersci/examples/ex13fi.desc
/usr/share/scilab/modules/intersci/examples/ex14.sce
/usr/share/scilab/modules/intersci/examples/ex14c.c
/usr/share/scilab/modules/intersci/examples/ex14fi-l.list
/usr/share/scilab/modules/intersci/examples/ex14fi.desc
/usr/share/scilab/modules/intersci/examples/ex15.sce
/usr/share/scilab/modules/intersci/examples/ex15c.c
/usr/share/scilab/modules/intersci/examples/ex15fi-l.list
/usr/share/scilab/modules/intersci/examples/ex15fi.desc
/usr/share/scilab/modules/intersci/examples/ex15fi.fundef
/usr/share/scilab/modules/intersci/examples/ex16.sce
/usr/share/scilab/modules/intersci/examples/ex16c.c
/usr/share/scilab/modules/intersci/examples/ex16fi-l.list
/usr/share/scilab/modules/intersci/examples/ex16fi.desc
/usr/share/scilab/modules/intersci/examples/ex1c.c
/usr/share/scilab/modules/intersci/examples/ex1fi.desc
/usr/share/scilab/modules/intersci/examples/ex2.sce
/usr/share/scilab/modules/intersci/examples/ex2f.f
/usr/share/scilab/modules/intersci/examples/ex2fi.desc
/usr/share/scilab/modules/intersci/examples/ex3.sce
/usr/share/scilab/modules/intersci/examples/ex3fi.desc
/usr/share/scilab/modules/intersci/examples/ex4.sce
/usr/share/scilab/modules/intersci/examples/ex4f.f
/usr/share/scilab/modules/intersci/examples/ex4fi-l.list
/usr/share/scilab/modules/intersci/examples/ex4fi.desc
/usr/share/scilab/modules/intersci/examples/ex5.sce
/usr/share/scilab/modules/intersci/examples/ex5f.f
/usr/share/scilab/modules/intersci/examples/ex5fi.desc
/usr/share/scilab/modules/intersci/examples/ex6.sce
/usr/share/scilab/modules/intersci/examples/ex6c.c
/usr/share/scilab/modules/intersci/examples/ex6fi.desc
/usr/share/scilab/modules/intersci/examples/ex7.sce
/usr/share/scilab/modules/intersci/examples/ex7f.f
/usr/share/scilab/modules/intersci/examples/ex7fi.desc
/usr/share/scilab/modules/intersci/examples/ex8.sce
/usr/share/scilab/modules/intersci/examples/ex8c.c
/usr/share/scilab/modules/intersci/examples/ex8fi.desc
/usr/share/scilab/modules/intersci/examples/ex9.sce
/usr/share/scilab/modules/intersci/examples/ex9c.c
/usr/share/scilab/modules/intersci/examples/ex9f.f
/usr/share/scilab/modules/intersci/examples/ex9fi-l.list
/usr/share/scilab/modules/intersci/examples/ex9fi.desc
/usr/share/scilab/modules/intersci/examples/zall.sce
/usr/share/scilab/modules/intersci/examples/zallfi.dia.ref
/usr/share/scilab/modules/intersci/help/
/usr/share/scilab/modules/intersci/macros/
/usr/share/scilab/modules/intersci/macros/buildmacros.sce