epix: 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 Debian possible default full paths are:

/usr/bin/epix - from package: epix

You may install the required package with command apt-get install {package}

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