zconfig_schema2html: 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/zconfig_schema2html - from package: python-zconfig

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

Error in other languages:
zconfig_schema2html: bevel nie gevind nie
zconfig_schema2html: comandă negăsită
zconfig_schema2html: comando não encontrado
zconfig_schema2html: commande introuvable
zconfig_schema2html: command not found
zconfig_schema2html: käsku ei ole
zconfig_schema2html: không tìm thấy lệnh
zconfig_schema2html: komanda nerasta
zconfig_schema2html: Kommando nicht gefunden.
zconfig_schema2html: kommandot finns inte
zconfig_schema2html: komut yok
zconfig_schema2html: nie znaleziono polecenia
zconfig_schema2html: níor aimsíodh an t-ordú
zconfig_schema2html: no se encontró la orden
zconfig_schema2html: no s'ha trobat l'ordre
zconfig_schema2html: opdracht niet gevonden
zconfig_schema2html: parancs nem található
zconfig_schema2html: perintah tidak ditemukan
zconfig_schema2html: príkaz nenájdený
zconfig_schema2html: příkaz nenalezen
zconfig_schema2html: команда не найдена
zconfig_schema2html: командата не е открита
zconfig_schema2html: 命令找不到
zconfig_schema2html: コマンドが見つかりません