/usr/lib/ is in oar-server 2.5.6-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/oar/
/usr/lib/oar/oar_meta_sched
/usr/lib/oar/database/
/usr/lib/oar/database/big_smp_admission_rules.sql
/usr/lib/oar/database/pg_structure_upgrade_2.3.0+svn1369.sql
/usr/lib/oar/database/pg_default_admission_rules.sql
/usr/lib/oar/database/pg_structure_upgrade_2.5.0-2.5.2.sql
/usr/lib/oar/database/pg_structure.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.3.1-2.3.3.sql
/usr/lib/oar/database/pg_structure_upgrade_2.5.4-2.5.5.sql
/usr/lib/oar/database/mysql_default_admission_rules.sql
/usr/lib/oar/database/default_data.sql
/usr/lib/oar/database/pg_structure_upgrade_2.3.3-2.4.0.sql
/usr/lib/oar/database/pg_structure_upgrade_2.4.0-2.5.0.sql
/usr/lib/oar/database/mysql_structure.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.5.0-2.5.2.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.3.3-2.4.0.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.5.4-2.5.5.sql
/usr/lib/oar/database/pg_structure_upgrade_2.3.1-2.3.3.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.3.0+svn1369.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.4.0-2.5.0.sql
/usr/lib/oar/database/pg_structure_upgrade_2.5.2-2.5.4.sql
/usr/lib/oar/database/pg_reset_structure.sql
/usr/lib/oar/database/mysql_structure_upgrade_2.5.2-2.5.4.sql
/usr/lib/oar/database/mysql_reset_structure.sql
/usr/lib/oar/bipbip
/usr/lib/oar/Leon
/usr/lib/oar/oarproperty
/usr/lib/oar/schedulers/
/usr/lib/oar/schedulers/oar_sched_gantt_with_timesharing_and_fairsharing
/usr/lib/oar/schedulers/oar_sched_gantt_with_timesharing
/usr/lib/oar/schedulers/oar_sched_gantt_with_timesharing_and_placeholder
/usr/lib/oar/schedulers/oar_sched_gantt_with_timesharing_and_fairsharing_and_placeholder
/usr/lib/oar/schedulers/oar_sched_gantt_with_timesharing_and_fairsharing_and_quotas
/usr/lib/oar/oarmonitor
/usr/lib/oar/Almighty
/usr/lib/oar/setup/
/usr/lib/oar/setup/database.sh
/usr/lib/oar/setup/server.sh
/usr/lib/oar/sarko
/usr/lib/oar/oaradmissionrules
/usr/lib/oar/oarremoveresource
/usr/lib/oar/oarnotify
/usr/lib/oar/oar_resources_add
/usr/lib/oar/finaud
/usr/lib/oar/oar_resources_init
/usr/lib/oar/oaraccounting
/usr/lib/oar/NodeChangeState
/usr/lib/oar/oarexec