/usr/bin/htdb_dump
/usr/bin/htdb_load
/usr/bin/htdb_stat
/usr/bin/htdig
/usr/bin/htdig-pdfparser
/usr/bin/htdump
/usr/bin/HtFileType
/usr/bin/htfuzzy
/usr/bin/htload
/usr/bin/htmerge
/usr/bin/htnotify
/usr/bin/htpurge
/usr/bin/htstat
/usr/bin/rundig
/usr/sbin/htdigconfig
You may install this package on Debian with
apt-get
install htdig