kwddel: 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/kwddel - from package: freewnn-kserver

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

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