cangw: 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/cangw - from package: can-utils

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

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