mkepmlist: 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/mkepmlist - from package: epm

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

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