/usr/bin/fbstat
/usr/bin/fbsvcmgr
/usr/bin/fbtracemgr
/usr/bin/gbak
/usr/bin/gdef
/usr/bin/gfix
/usr/bin/gpre
/usr/bin/gsec
/usr/bin/isql-fb
/usr/bin/nbackup
/usr/bin/qli
/usr/sbin/fb_lock_print
/usr/sbin/fbserver
You may install this package on Debian with
apt-get
install firebird2.5-super