oar_resources_init: command not found

Have You tried accessing the binary with the full path?

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/sbin/oar_resources_init - from package: oar-server

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