/usr/ is in apt-offline 1.5.1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/python2.7/
/usr/lib/python2.7/dist-packages/
/usr/lib/python2.7/dist-packages/apt_offline_core/
/usr/share/
/usr/share/man/
/usr/share/man/man8/
/usr/share/man/man8/apt-offline.8.gz
/usr/share/doc-base/
/usr/share/doc-base/apt-offline
/usr/share/doc/
/usr/share/doc/apt-offline/
/usr/share/doc/apt-offline/changelog.gz
/usr/share/doc/apt-offline/NEWS.Debian.gz
/usr/share/doc/apt-offline/copyright
/usr/share/doc/apt-offline/README.Debian
/usr/share/doc/apt-offline/apt-offline.html
/usr/share/doc/apt-offline/README
/usr/share/pyshared/
/usr/share/pyshared/apt_offline_core/
/usr/share/pyshared/apt_offline_core/AptOfflineMagicLib.py
/usr/share/pyshared/apt_offline_core/AptOfflineLib.py
/usr/share/pyshared/apt_offline_core/AptOfflineDebianBtsLib.py
/usr/share/pyshared/apt_offline_core/AptOfflineCoreLib.py
/usr/share/pyshared/apt_offline_core/AptOffline_argparse.py
/usr/share/pyshared/apt_offline_core/__init__.py
/usr/bin/
/usr/bin/apt-offline
/usr/lib/python2.7/dist-packages/apt_offline_core/__init__.py
/usr/lib/python2.7/dist-packages/apt_offline_core/AptOffline_argparse.py
/usr/lib/python2.7/dist-packages/apt_offline_core/AptOfflineCoreLib.py
/usr/lib/python2.7/dist-packages/apt_offline_core/AptOfflineDebianBtsLib.py
/usr/lib/python2.7/dist-packages/apt_offline_core/AptOfflineLib.py
/usr/lib/python2.7/dist-packages/apt_offline_core/AptOfflineMagicLib.py