/usr/ is in sessioninstaller 0.20+bzr123-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/
/usr/bin/session-installer
/usr/bin/gst-install
/usr/share/
/usr/share/dbus-1/
/usr/share/dbus-1/services/
/usr/share/dbus-1/services/sessioninstaller.service
/usr/share/pyshared/
/usr/share/pyshared/sessioninstaller-0.0.0.egg-info
/usr/share/pyshared/sessioninstaller/
/usr/share/pyshared/sessioninstaller/core.py
/usr/share/pyshared/sessioninstaller/gstinstaller.py
/usr/share/pyshared/sessioninstaller/backends/
/usr/share/pyshared/sessioninstaller/backends/dummy.py
/usr/share/pyshared/sessioninstaller/backends/__init__.py
/usr/share/pyshared/sessioninstaller/backends/aptd.py
/usr/share/pyshared/sessioninstaller/backends/synaptic.py
/usr/share/pyshared/sessioninstaller/__init__.py
/usr/share/pyshared/sessioninstaller/utils.py
/usr/share/pyshared/sessioninstaller/errors.py
/usr/share/doc/
/usr/share/doc/sessioninstaller/
/usr/share/doc/sessioninstaller/examples/
/usr/share/doc/sessioninstaller/examples/test.gz
/usr/share/doc/sessioninstaller/README
/usr/share/doc/sessioninstaller/copyright
/usr/share/doc/sessioninstaller/NEWS.gz
/usr/share/doc/sessioninstaller/changelog.Debian.gz
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/session-installer.1.gz
/usr/share/man/man1/gst-install.1.gz
/usr/lib/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/sessioninstaller/
/usr/lib/python2.7/dist-packages/sessioninstaller/backends/
/usr/sbin/
/usr/lib/python2.7/dist-packages/sessioninstaller-0.0.0.egg-info
/usr/lib/python2.7/dist-packages/sessioninstaller/core.py
/usr/lib/python2.7/dist-packages/sessioninstaller/gstinstaller.py
/usr/lib/python2.7/dist-packages/sessioninstaller/backends/dummy.py
/usr/lib/python2.7/dist-packages/sessioninstaller/backends/__init__.py
/usr/lib/python2.7/dist-packages/sessioninstaller/backends/aptd.py
/usr/lib/python2.7/dist-packages/sessioninstaller/backends/synaptic.py
/usr/lib/python2.7/dist-packages/sessioninstaller/__init__.py
/usr/lib/python2.7/dist-packages/sessioninstaller/utils.py
/usr/lib/python2.7/dist-packages/sessioninstaller/errors.py