/usr/bin/berkeley_db_svc
/usr/bin/db_archive
/usr/bin/db_checkpoint
/usr/bin/db_codegen
/usr/bin/db_deadlock
/usr/bin/db_dump185
/usr/bin/db_dump
/usr/bin/db_hotbackup
/usr/bin/db_load
/usr/bin/db_printlog
/usr/bin/db_recover
/usr/bin/db_stat
/usr/bin/db_upgrade
/usr/bin/db_verify
You may install this package on CentOS with
yum
install db4-utils