epoptes: 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/epoptes - from package: epoptes

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

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