wdel: 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/wdel - from package: wput

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

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