runzope: 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/lib/zope2.13/bin/runzope - from package: zope2.13

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

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