/usr/ is in libnet-z3950-zoom-perl 1.30-1ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.26/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/Z3950/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/Z3950/ZOOM.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Net/Z3950.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/ZOOM.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/ZOOM.pod
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/Z3950/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/Z3950/ZOOM/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Net/Z3950/ZOOM/ZOOM.so
/usr/share/
/usr/share/doc/
/usr/share/doc/libnet-z3950-zoom-perl/
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/
/usr/share/doc/libnet-z3950-zoom-perl/README
/usr/share/doc/libnet-z3950-zoom-perl/changelog.Debian.gz
/usr/share/doc/libnet-z3950-zoom-perl/copyright
/usr/share/doc/libnet-z3950-zoom-perl/examples/
/usr/share/doc/libnet-z3950-zoom-perl/examples/README
/usr/share/doc/libnet-z3950-zoom-perl/examples/ccl/
/usr/share/doc/libnet-z3950-zoom-perl/examples/ccl/default.bib
/usr/share/doc/libnet-z3950-zoom-perl/examples/cql/
/usr/share/doc/libnet-z3950-zoom-perl/examples/cql/pqf.properties.gz
/usr/share/doc/libnet-z3950-zoom-perl/examples/net-z3950/
/usr/share/doc/libnet-z3950-zoom-perl/examples/net-z3950/zoomtst1.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/net-z3950-zoom/
/usr/share/doc/libnet-z3950-zoom-perl/examples/net-z3950-zoom/async.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/net-z3950-zoom/zoomtst1.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/net-z3950-zoom/zoomtst3.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/records/
/usr/share/doc/libnet-z3950-zoom-perl/examples/records/esdd0006.grs
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/async.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/trivial-async.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/update.pl.gz
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zhello.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zoom-delete-records
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zoomdump
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zoomscan.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zoomtst1.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zoomtst3.pl
/usr/share/doc/libnet-z3950-zoom-perl/examples/zoom/zselect
/usr/share/man/
/usr/share/man/man3/
/usr/share/man/man3/Net::Z3950::ZOOM.3pm.gz
/usr/share/man/man3/ZOOM.3pm.gz