cdfmoyuvwt: 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/cdfmoyuvwt - from package: cdftools

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

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