canbusload: 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/canbusload - from package: can-utils

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

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