orville-write: 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/orville-write - from package: orville-write

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

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