durep: 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/durep - from package: durep

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

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