whyteboard: 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/whyteboard - from package: whyteboard

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

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