/usr/ is in db-util 1:5.3.21~exp1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/bin/db_archive
/usr/bin/db_sql
/usr/bin/db_load
/usr/bin/
/usr/share/
/usr/share/man/
/usr/share/man/man1/
/usr/share/doc/
/usr/share/doc/db-util/
/usr/share/doc/db-util/copyright
/usr/share/doc/db-util/changelog.gz
/usr/bin/db_recover
/usr/bin/db_deadlock
/usr/bin/db_log_verify
/usr/bin/db_upgrade
/usr/bin/db_hotbackup
/usr/bin/db_verify
/usr/bin/db_dump
/usr/bin/db_stat
/usr/bin/db_replicate
/usr/bin/db_printlog
/usr/bin/db_checkpoint
/usr/share/man/man1/db_hotbackup.1.gz
/usr/share/man/man1/db_archive.1.gz
/usr/share/man/man1/db_dump.1.gz
/usr/share/man/man1/db_load.1.gz
/usr/share/man/man1/db_deadlock.1.gz
/usr/share/man/man1/berkeley_db_svc.1.gz
/usr/share/man/man1/db_upgrade.1.gz
/usr/share/man/man1/db_checkpoint.1.gz
/usr/share/man/man1/db_stat.1.gz
/usr/share/man/man1/db_codegen.1.gz
/usr/share/man/man1/db_printlog.1.gz
/usr/share/man/man1/db_verify.1.gz
/usr/share/man/man1/db_recover.1.gz