cdfbci: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/cdfbci - from package: cdftools

You may install the required package with command apt-get install {package}

Error in other languages:
cdfbci: bevel nie gevind nie
cdfbci: comandă negăsită
cdfbci: comando não encontrado
cdfbci: commande introuvable
cdfbci: command not found
cdfbci: käsku ei ole
cdfbci: không tìm thấy lệnh
cdfbci: komanda nerasta
cdfbci: Kommando nicht gefunden.
cdfbci: kommandot finns inte
cdfbci: komut yok
cdfbci: nie znaleziono polecenia
cdfbci: níor aimsíodh an t-ordú
cdfbci: no se encontró la orden
cdfbci: no s'ha trobat l'ordre
cdfbci: opdracht niet gevonden
cdfbci: parancs nem található
cdfbci: perintah tidak ditemukan
cdfbci: príkaz nenájdený
cdfbci: příkaz nenalezen
cdfbci: команда не найдена
cdfbci: командата не е открита
cdfbci: 命令找不到
cdfbci: コマンドが見つかりません