hunzip: 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/hunzip - from package: hunspell-devel

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

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