oaraccounting: 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/sbin/oaraccounting - from package: oar-server

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

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