zanata_language_list: 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/zanata_language_list - from package: zanata-util

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

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