hzip: 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/hzip - from package: hunspell-devel

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

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