/usr/ is in maxima-emacs 5.32.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maxima/
/usr/share/maxima/5.32.1/
/usr/share/emacs/
/usr/share/emacs/site-lisp/
/usr/share/emacs/site-lisp/maxima/
/usr/lib/
/usr/lib/emacsen-common/
/usr/lib/emacsen-common/packages/
/usr/lib/emacsen-common/packages/compat/
/usr/lib/emacsen-common/packages/compat/maxima-emacs
/usr/lib/emacsen-common/packages/install/
/usr/lib/emacsen-common/packages/install/maxima-emacs
/usr/lib/emacsen-common/packages/remove/
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/usr/share/
/usr/share/doc/
/usr/share/doc/maxima-emacs/
/usr/share/doc/maxima-emacs/README.Debian
/usr/share/doc/maxima-emacs/copyright
/usr/share/texmf/
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/usr/share/emacs/site-lisp/maxima/imaxima.lisp
/usr/share/emacs/site-lisp/maxima/emaxima.lisp
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/usr/share/emacs/site-lisp/maxima/imaxima-autoconf-variables.el
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/usr/share/emacs/site-lisp/maxima/imaxima.el
/usr/share/emacs/site-lisp/maxima/emaxima.el
/usr/share/emacs/site-lisp/maxima/imath.el
/usr/share/emacs/site-lisp/maxima/setup-imaxima-imath.el
/usr/share/doc/maxima-emacs/changelog.Debian.gz
/usr/share/maxima/5.32.1/emacs