wdmLogin: 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/wdmLogin - from package: wdm

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

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