elza: 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/elza - from package: elza

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

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