zone2sqlite: 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/sbin/zone2sqlite - from package: bind-sdb

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

Error in other languages:
zone2sqlite: bevel nie gevind nie
zone2sqlite: comandă negăsită
zone2sqlite: comando não encontrado
zone2sqlite: commande introuvable
zone2sqlite: command not found
zone2sqlite: käsku ei ole
zone2sqlite: không tìm thấy lệnh
zone2sqlite: komanda nerasta
zone2sqlite: Kommando nicht gefunden.
zone2sqlite: kommandot finns inte
zone2sqlite: komut yok
zone2sqlite: nie znaleziono polecenia
zone2sqlite: níor aimsíodh an t-ordú
zone2sqlite: no se encontró la orden
zone2sqlite: no s'ha trobat l'ordre
zone2sqlite: opdracht niet gevonden
zone2sqlite: parancs nem található
zone2sqlite: perintah tidak ditemukan
zone2sqlite: príkaz nenájdený
zone2sqlite: příkaz nenalezen
zone2sqlite: команда не найдена
zone2sqlite: командата не е открита
zone2sqlite: 命令找不到
zone2sqlite: コマンドが見つかりません