/usr/share/coturn/examples/scripts/longtermsecure/ is in coturn 4.5.0.7-1ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/coturn/examples/scripts/longtermsecure/secure_dtls_client.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_dtls_client_cert.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_relay.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_relay_cert.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_sctp_client.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_tcp_client.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_tcp_client_c2c_tcp_relay.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_tls_client.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_tls_client_c2c_tcp_relay.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_tls_client_cert.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_udp_c2c.sh
/usr/share/coturn/examples/scripts/longtermsecure/secure_udp_client.sh
/usr/share/coturn/examples/scripts/longtermsecuredb/secure_relay_with_db_mongo.sh
/usr/share/coturn/examples/scripts/longtermsecuredb/secure_relay_with_db_mysql.sh
/usr/share/coturn/examples/scripts/longtermsecuredb/secure_relay_with_db_mysql_ssl.sh
/usr/share/coturn/examples/scripts/longtermsecuredb/secure_relay_with_db_psql.sh
/usr/share/coturn/examples/scripts/longtermsecuredb/secure_relay_with_db_redis.sh
/usr/share/coturn/examples/scripts/longtermsecuredb/secure_relay_with_db_sqlite.sh