cdfbuoyflx: 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/cdfbuoyflx - from package: cdftools

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

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