runzope.in: command not found

Have You tried accessing the binary with the full path?

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/lib/python/Zope2-2.13.22.egg/Zope2/utilities/skel/bin/runzope.in - from package: zope2.13

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