/usr/lib/libtclmatrixd.so.9

This file is indexed.

/usr/lib/libtclmatrixd.so.9 is in plplot-tcl 5.10.0-0ubuntu5.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/libtclmatrixd.so.9.2.0