cdfmoy_weighted: 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/cdfmoy_weighted - from package: cdftools

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

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