cdfmoyt: 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/cdfmoyt - from package: cdftools

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

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