/usr/bin/db5.3_archive
/usr/bin/db5.3_checkpoint
/usr/bin/db5.3_deadlock
/usr/bin/db5.3_dump
/usr/bin/db5.3_hotbackup
/usr/bin/db5.3_load
/usr/bin/db5.3_log_verify
/usr/bin/db5.3_printlog
/usr/bin/db5.3_recover
/usr/bin/db5.3_replicate
/usr/bin/db5.3_stat
/usr/bin/db5.3_upgrade
/usr/bin/db5.3_verify
You may install this package on Debian with
apt-get
install db5.3-util