oardel: 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/oardel - from package: oar-user

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

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