dzhandle: 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/dzhandle - from package: zope-common

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

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