ilur: 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/bin/ilur - from package: libdevil1c2

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