oil-bugreport: 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 CentOS possible default full paths are:

/usr/bin/oil-bugreport - from package: liboil-devel

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/oil-bugreport - from package: liboil0.3

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

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