flies: 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/flies - from package: zanata-python-client

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

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