vdetelweb: 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/vdetelweb - from package: vdetelweb

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

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