pyzor: 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 CentOS possible default full paths are:

/usr/bin/pyzor - from package: pyzor

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/pyzor - from package: pyzor

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

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